I am just wondering if the nes emulator for animal crossing is good for speedruns because after all you can get the super mario bros item via a unoffical gba e reader dot code any way so it is fine for that I mean it is a offical way to play it sort of

No. The emulator inside of Animal Crossing has no left+right handling, and with the GameCube controller you are able to input left+right at the same time, which is not possible on an unmodified OEM NES controller.

oh nvm then that is sad but cool way to emulate the game nontheless I guess I will speedrun the game via wii u virtual console EDIT: yeah I know you can backwards walk so cheating