Boyo
a Game Boy emulator written in Javascript
Try one of the available ROMs
Espionage - Fredrik Brundin
Adjustris - TODO SEARCH AUTHOR
gejmbåj - Snorpung
oh! - Snorpung
20y - Snorpung
demon blood - Youth Uprising
Music Tech - PIXELH8
Little Sound Dj (demo) - TODO SEARCH AUTHOR
cpu_instrs
dmg_sound
dmg_sound-2
instr_timing
mem_timing
mem_timing-2
oam_bug
oam_bug-2
OR
Open your own ROM