Goboy

Scroll down for a browser version of Goboy using Webassembly.

The buttons are as follows:

GameboyKeyboard
startenter
selectbackspace
upup arrow
downdown arrow
leftleft arrow
rightright arrow
AZ
BX

It might take a little bit to load as the file is large. When you see a black screen it’s loaded. Then click “Browse” and upload a ROM file you’ve downloaded e.g. Tetris. Sadly it is not legal for me to link directly to the ROM file so you need to download it yourself.