On my 3DS, my A button is a little screwy, but my B button works fine. It doesn't work sometimes, so I ended up getting a homebrew program that switched the functionality of my A and B buttons. Is this allowed? Just as a side note, I didn't use homebrew for anything else.

Remapping should be fine, so long as you're still controlling the game with the 3ds and do not add additional functions such as macros.

Alright. May I ask, what are macros?

A macro is a series of inputs caused by one action. For example, a turbo button would input A repeatedly when you yourself only pressed or held the button once. It should only be 1 press per 1 input.

Ohhh, okay. Yea, I wouldn’t even know how to do that