All of these cheats will work with the English Translation patched Mother 3 ROM if entered correctly into a compatible emulator. I have used all of them at some point during multiple play-throughs.
Actually i already patched my rom by the time i found and tested these, so for now all i know is that they work on the patched version. If you want, once i get back home i could download another rom and try it out without the patch. Right now im using my friends computer and he doesnt have an emulator.
e2: @Satsy Ok i just downloaded the unpatched new rom and used the codes in both the Mother 1 and Mother 2 portions, and now i see that they work for the non patched and english patched versions, so there you go. But remember the codes are for the Code Breaker.
you can only use that with the original/japanese file of the game. the addresses are different for english patched game. im a noob when it comes to comparing addresses between files so i couldnt find a way to use the editor.