---

Open FCEUXD and load your ROM, start a new game and wait for Samus to load. Open the built-in hex editor and set it to PPU Memory. Search for $00161927, you should get a result at $3F10.

Right-click on 19 and add a write breakpoint. Play like normal until you pick up the Morphing Ball, the debugger should "snap", the top instruction will be STA $2007 = #$00, scroll up twice and you'll see LDA ($00), Y @ A298 =#19.

Confusing? Not really, all it says is load the accumulator with the value at $A298 in the NES Memory, which happens to be $19, the green that's pissing us off right now. Go back to the hex editor and switch to NES Memory, go to offset $A298, you should see $1927... I hope you recognize them, that's Samus' green and yellow, they didn't change her helmet color this way for some reason. Right-click on $19 and choose "Go here in ROM file".

Okay, change those two values to whatever you want, go back into the debugger and click Run. Now play until you go through a door, it should snap again, but this time it'll load the correct colors. Next thing to do is get some missiles and do the same thing for their palette, then get the Varia and do both again. Good luck.

---