Originally posted by BMF54123

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When did this topic become a "do's and don'ts" list for hacks?

32. A "two-sided" level. Basically, you would have 2 different versions of the same level, connected by doors or pipes. One version would have different traps and enemies than the other, and you'd have to switch between the two "worlds" to get past certain traps.

A couple of themes for this idea:

- "Fire" and "ice" versions of the level. In the ice level, the lava has frozen over, but huge icicles and ice spikes block Mario's progress; in the fire level, the icicles and spikes have melted, but so has the lava. (I sort of did this in SMO, in the "Cooling Systems" level.)

- "Swappable" BG/FG. Basically, you make a level using both layers 1 and 2, but turn layer 2 interaction off. Now, copy the level and move all the layer 1 objects to layer 2, and vice versa. The player now has to "swap" the background layers (via pipes, doors, or a custom exit block) in order to progress through the level. You could make some really interesting puzzles this way.

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