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1 user currently in Rom Hacking:  hukka |
| Acmlm's Board - I2 Archive - Rom Hacking - Help for a new weapon in Castlevania |
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Dr. Mario Bot Level: 26  Posts: 67/262 EXP: 99225 For next: 3050 Since: 05-04-04 Since last post: 53 min. Last activity: 41 min. |
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| I've been trying to figure this out forever, actually ever since the editor Stake came out. (And yes this is the same thing I requested in the Game Genie thread.) I want the Rosary Beads (The cross that kills everything on the screen) to take the place of the stopwatch, and use 10 hearts instead of 5. The hearts will probably be easy to find, infact I haven't even really looked for that yet. What I need help with is switching the weapons. Any clues that I might find helpful? | |||
Dish Spiny Level: 38 Posts: 217/596 EXP: 355646 For next: 14801 Since: 03-15-04 From: Disch Since last post: 18 days Last activity: 18 days |
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| 3 parts: 1) Graphics should be easy enough. You could just replace the watch with the cross grahpics... I even think they use the same palette, so there's no problem. 2) Number of hearts should be easy too. There's a 05 somewhere in the ROM which is the number of hearts. Find it...change it to 0A (or however many hearts.... 10 seems a little low for how awesome the cross is, imo). You could do this by corrupting (replacing all 05's with 0A and narrowing down which 05 is the right one)... or you could set a breakpoint in FCEUxd on writes to your heart count and then use the watch (this would probably be the easiest way). 3) Get the stopwatch routine to jump to the cross routine instead. Obviously the hardest part =P. Anyway... likely there's a JSR somewhere (or a JMP.. or even possibly a branch) which jumps to the cross routine... and ditto for the watch. Provided they're both in the master bank... it's as simple as finding them and copying the cross routine address to the stopwatch. Finding them can be somewhat of a hassle though. Anyway... I'll look into this if I get bored (which I am... so perhaps I might find something) |
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dan Snap Dragon Level: 43  Posts: 308/782 EXP: 534516 For next: 30530 Since: 03-15-04 Since last post: 20 hours Last activity: 14 hours |
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| Well, the cost of hearts is at $1DA8F in the ROM. (PRG 1 version) | |||
solid-tbone Octorok Level: 11 Posts: 29/34 EXP: 4843 For next: 1142 Since: 03-15-04 From: TEKHacks Since last post: 257 days Last activity: 125 days |
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| I had this info down in notepad. DD found it while showing me how to add the Red Axe to CV. I just couldn't stop the game from crashing after you don't have enough hearts to use it. Then again, I wasn't that good then and have gotten a little better since then. I had it replace the stop watch as well. I don't like the stop watch really in CV. | |||
jasukan Panser Level: 30 Posts: 231/344 EXP: 155950 For next: 9919 Since: 03-15-04 Since last post: 135 days Last activity: 62 days |
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| I used some Game Genie codes that could let you do things like this, including the invisibility potion, meat, and other things, like trailing holy water, and having axes move like crosserangs. You could edit these into the ROM, but I think they are a little glitchy (like if you have below 5 hearts and try to use the rosary the game will freeze). I think they are on Thaddeus's forum somewhere. | |||
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Dr. Mario Bot Level: 26 Posts: 72/262 EXP: 99225 For next: 3050 Since: 05-04-04 Since last post: 53 min. Last activity: 41 min. |
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| I can't even get on Thad's website or forum for some reason, but if it's the same GG code that I used that was supposed to come from him, then I just die when I touch items... | |||
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jasukan Panser Level: 30 Posts: 251/344 EXP: 155950 For next: 9919 Since: 03-15-04 Since last post: 135 days Last activity: 62 days |
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| I found cached versions of those code pages, I guess I could post the codes here, there's a lot. However, I can't find the code in those posts to make the rosary a subweapon, like you were talking about. I think it might have been a hack that someone like dan or DahrkDaiz did that I asked for in IRC once. Anyways, there's still some other codes in these posts that will let you do cool things that you might like to use in your hack. The trail of Simons when walking and the moving holy water are two of my favorite codes, makes you feel like you're playing one of the newer CV's. The more interesting ones are in bold text. "These are Game Genie cheats for Castlevania -- they're incredibly useful because they can be permanantly hacked into the ROM. To learn more check out SnowBro's Document. Thanks to Jasukan for finding these cheats: http://www.nww.silius.net/ggw/castlevania.html ---------------------------------------------------------------------------- Note: Some of the cheats may not work. The GG codes highlighted in bold are some of the more interesting ones. SLOVXK-enemies and items fall thru the floor, need to stand under the ball when you defeat the boss EEKTEA-alot of points from enemies and items OTSKKE-gameplay's alot faster, glitchy XELNGO-animation's sped up VOSTIL-at start of game, get the Lg heart from the 2nd candle, and fall down the hole it creates. On your 2nd life, you'll be on stage 16 IGGOON-walkthru most walls and blocks. Blocks do not hinder your jumps SIKKEN-At start of game, as you're walking towards the castle, the graphics will start getting messed up. But when you enter the castle, you'll have 60,000 points. The graphics clear up on the 2nd level YEUZLZ-get an xtra guy for almost every 100 points ZUEELU- start game and Simon appears from underground STAZZZ-when you die, you'll start over very fast SEKKKT-your score continuously increases, there's $100 symbols in front of Simon as he walks. No enemies or candles though AAVKEZ-when you collect items and kill enemies, your stage number increases. The higher the stage number, the more enemies and damage you'll recieve AASGEZ-start with 405 seconds AANGAZ-start with 75,244 points SESVKE-enemies and bosses move faster. The axe and holy water travel faster also STUVGN-get items automatically LXLSEN-get twice the items from enemies and candles PULSEY-get twice the items from enemies and candles, and sometimes bosses STUVPN+Items aren't what they appear to be. On each stage, auto recieve the whip STLVPN power ups, cross and the invis potion goes into effect when needed, and the stages end automatically. Sometimes you'll get stuck in the bosses room with no boss, just wait till time runs out. Use inf lives code ZOUSEN- any whippable item, when whipped, acts like a boss was defeated and drops the ball XOZSOX-recieve alot more points defeating enemies with weapons KPOKKK-start with 1200 seconds, 25 hearts, 13 lives, and you'll continue with the same number of hearts when you die. Also the stage number gets higher and you can collect more than 99 hearts (you'll see when your hearts get added to your score) PPKLKO-skips the intro and starts you on stage one. As soon as you start stage 1, hold right and keep jumping to free yourself. The graphics are messed up for that stage only GKKOEU-at the intro, your score will start increasing, and a couple of seconds later you'll see the ending! PEAXTZ-get hit by an enemy and your score will start increasing' OOGGVZ-recieve an xtra life for almost every 100 points, up to 99 lives TIIVIA-recieve more points for killing multiple enemies SANVZE-the only time you get points killing enemies, is when you kill multiple enemies VVSTKA- enemy or weapon travels super fast VVSVSA-when you enter the castle, you'll be at stage 99 PAGZSZ-get some items hidden in blocks automatically VVSTVE-when you get hit, the inv lasts till the next stage SIKKON-auto skips the outside of the castle at start of game PAKKSY-when you enter the castle, the demo takes over SKPPEL-jump to the top of screen NAPOLN-don't get knocked back when hit POSTUE-when you get hit or get the invis potion, the effects lasts a long time PSXXTL-can whip and throw weapon at the same time for twice the damage AALTTY-more protection from hits ZLETTY-walkthru enemies except for the regular bats ILATTY-recieve items running into enemies, change the 1st 2 letters for different items SPIIIZ-invis potion goes into effect during gameplay LIGZKE + LIGXKE-when you swing your whip, it makes the invis potion go into effect. Can't break any blocks and don't jump and swing your whip SEKVSE- the invis potion is always in effect OTOOGS-if you hold forward while you swing your whip, you'll slide forwards SLETIY-when an enemy hits you, it makes them travel in the opposite direction NYKPOY-Simon walks super fast from left to right. Messes some graphics up ASEELU-as soon as you start the game, the cross is in effect EEKVVE-walk thru enemies LAUYKP-Simon continuously advances thru each stage like he does on the map, but he never stops VVVVKE-when you face an enemy, candle, or boss, they'll keep getting damaged till they die. Up to 4 blocks away GZKILZ-items in candles, change the 1st 2 to get different items GSIIZZ-1st candle at start of game has_. Change the 1st 2 and last letter for different items SXVIZZ-last candle at start of game has _. Change the 1st 2 and last letter for different items KOSIAZ-xtra candle at start of game has _. Change the 1st 2 and last letters for diff items ZAOIPX-whip power ups in candles get replaced by _. Change the 1st 2 and last letter for diff items EEATEA- can power up more than once from a whip power up. Don't collect more than 2 OSXZIL-when you collect whip power ups, your whip has the appearance of no whip power ups EANTVE-no hesitation getting a whip power up YIKVTV-weapons kill the 1st boss in one hit NOATLY-weapons refills health NUZTYY-weapons also gives you the invis potion YOXSEL-holy water's flame travels along the ground till it leaves the screen YOXSOL-holy water's flame never goes away till you leave the screen YOKSEL+ YOKSEU using holy water advances you to the next stage. The only catch is that it has to be going in the same direction as the stage you're on(if you're on a stage that goes left to right, then the next stage has to go left to right also). And you also can't use it on the same stage the boss is on YUVSEL-holy water's flame burns 3 times as long ETETTV-the dagger will damage all things in front and behind you IPSOKN-the watch will work on the second boss. To make it on some blocks, get hit by an enemy at the height of your jump VIITIA-when you kill multiple enemies with holy water, you'll recieve more points PSEALX-a few enemies have the watch effect on them SLVTAV-if you have a weapon with a double or triple shot, your weapon will do more damage AKPIVZ-when you use the axe, it spins around Simon's head and activates the watch instead AKAIKZ-when you use holy water, you'll activate the watch instead AKASSZ-when you use the boomerang, you'll activate the watch instead AKGISX-if you have the watch and not enough hearts to use it, you'll shoot the dagger instead and it doesn't use any hearts ELUOIG-get any weapon. If you stand in one spot and swing your whip, you'll shoot your weapon instead and it won't use any hearts. The music and s.e. clear up after the 1st level SLKTAV-the dagger will hit more than once UIVVAN-when you get the cross, it gets put in your weapon box instead and costs 5 hearts per use AEAIKZ-when you use holy water, you'll shoot the boomerang instead PEAIKZ-holy water travels like the boomerang PEPIVZ-the axe travels like the boomerang XAZSNZ-inf hearts for all weapons except the watch EEGSEZ-inf hearts for the watch and it only cost 1 heart per use Codes sent in by: Nick Jurkowski AEIPZT Don't get 'pushed back' when hit. EIYNTE No Fishmen. GUTTUN Igor monkeys fall. PVPEKA No Skele-dragon. Yes, also note you might want to combine SESVKE with YOXSEL so the Holy Water doesn't become insanely powerful, where Simon could just follow it as it destroys everything in it's path. This makes the flame trail faster. Also, here are some more cheats from another page I found. I bolded the ones which I thought were most interesting, I haven't tried em all yet though. POXXIL Whip turns into different items, enemies, and bosses when swung Tested by Black Sabbath forever! and Simon_Magus PSXXIL When Simon swings his whip, he leaves different images behind. Sometimes a ghost or other enemy will fall out of his whip when swung Tested by Black Sabbath forever! and kami_amaya SKPPEL Jump twice as high Tested by Black Sabbath forever! and Simon_Magus STOOLS Still move while swinging whip Tested by reptile and Simon_Magus TKEEAA Simon's whip, candles, enemies, and your weapon are in the form of bats. Try changing the 1st two letters to TV, PK, ZK, LK, YS, TN, IN, or GN for different results. Tested by GAMELORD and Nick Z YGNATA Simon, enemies, and candles are a neat shade of blue Tested by kami_amaya and Simon_Magus YIKVTS Super whip!! Hurts enemies above and below you, inflicts massive damage on bosses!! Tested by Dr. Arcade and Richter X SZSVLYSA Infinite health Submitted by Zazeroth Tested by DelRay and jab000 IPITTY Die in one hit. Submitted by Simon_Magus Tested by GAMELORD and kami_amaya KKKPEL Simon turns into a walking glitch. Submitted by Simon_Magus Tested by GAMELORD and kami_amaya YEUZLZ Recieve an xtra life for almost every 100 points Submitted by gedowski Tested by byakhee00 and jab000 AVEEZZSA Infinite energy this work Submitted by webster1975 Tested by BELMOND and The Creator AANGSAGE AANKXPGE Start with 8 lives ASOGOPIA Start with 80 power hearts AXOGOPIE Start with 40 power hearts GZOGYUSE Keep weapons after losing a life KXESUZKA KZSSEZKA Weapons don't use power hearts OXNGLZVK Infinite lives (NOTE: You may notice some extra flicker on the screen. Try pressing the RESET button to clear it.) PANGSAGA PANKXPGA Start with 1 life SXXXYAAX Infinite time ZEUTAYAA Gain rapid fire shots on weapon pick-up GETATA A ton more enemies in the castle Tested by Black Sabbath forever! and Simon_Magus NAPOLN Don't get knocked back when hit Tested by Black Sabbath forever! and Simon_Magus NOVEEN When Simon swings his whip, his head changes into dracula's head Tested by Black Sabbath forever! and Simon_Magus POLATE A trail of Simons follow you Tested by Black Sabbath forever! and Simon_Magus POTATO Just music, no sound effects Tested by Black Sabbath forever! and kami_amaya" (edited by jasukan on 01-01-05 11:03 PM) (edited by jasukan on 01-01-05 11:08 PM) |
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Dr. Mario Bot Level: 26 Posts: 81/262 EXP: 99225 For next: 3050 Since: 05-04-04 Since last post: 53 min. Last activity: 41 min. |
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| YOXSEL just makes most of the weapons become the invisible potion for me... I have that first list of Game Genie codes and most of them don't work for me. |
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jasukan Panser Level: 30 Posts: 253/344 EXP: 155950 For next: 9919 Since: 03-15-04 Since last post: 135 days Last activity: 62 days |
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| Are you using the PRG 0 version of the ROM? | |||
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Dr. Mario Bot Level: 26 Posts: 82/262 EXP: 99225 For next: 3050 Since: 05-04-04 Since last post: 53 min. Last activity: 41 min. |
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| Nope, so I'm going to have to try it. **Edit** HEY They work for the PRG0 rom... which means I am either going to rehack a PRG0 rom or just not worry about it, sadly the rosary code just freezes when you run out of hearts though, but I do like the holy water, that one is pretty cool. (edited by Dr. Mario on 01-02-05 02:05 AM) |
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jasukan Panser Level: 30 Posts: 254/344 EXP: 155950 For next: 9919 Since: 03-15-04 Since last post: 135 days Last activity: 62 days |
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Originally posted by Dr. Mario Yeah, sorry about that. If you're willing to take some time later on and make a copy of your hack in the PRG 0 rom...other than that, I dunno, unless there's a way to convert the codes for a different type of ROM or something.  |
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Dr. Mario Bot Level: 26 Posts: 83/262 EXP: 99225 For next: 3050 Since: 05-04-04 Since last post: 53 min. Last activity: 41 min. |
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| Nah, I already tried lol I might just wait untill I'm done with my current hack and then make a hack where you play as Grant from CV3, and hardcode some of these into it. And if I do that I need to know if anyone knows if your whip actually gets stronger when you get whip powerups or if it just gets longer. (edited by Dr. Mario on 01-02-05 02:46 AM) |
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dan Snap Dragon Level: 43 Posts: 318/782 EXP: 534516 For next: 30530 Since: 03-15-04 Since last post: 20 hours Last activity: 14 hours |
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| Converting those addresses to PRG 1 should be easy enough. You just work out the ROM address being changed, go to that location in the PRG 0 ROM, and try to find the bytes in the PRG 1 ROM. I think your whip does get stronger as you get powerups also. |
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Dr. Mario Bot Level: 26 Posts: 84/262 EXP: 99225 For next: 3050 Since: 05-04-04 Since last post: 53 min. Last activity: 41 min. |
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| You'd think that lol I thought that too, but I could find the same consecutive string of data in both of them. |
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