oh wow ... the gameboy, one of first and favorite systems B)
my collection (in no order):
F1 race is like rad racer/pole position
Chess Master (i bet you can guess what it's about)
Contra Spirit (J) / Contra - The Alien Wars
Kirby's Pinball land and Revenge of the Gator :wub:
kirby's dream land 2 (very well known and done platformer)
Twin-Bee (cute shooter)
Tetris Attack (one of my favorite action puzzle games! there's no dropping blocks here ... if you want a pokemon themed version find pokemon no panemon)
Bust-A-Move 2 (there may be better versions of this game for other emulators)
hentai.gbc (public domain rom, great to run and show to friends for a laugh)
rtype2 (hella shooter, good conversion for smaller screens ... the pcengine version may be better)
gargoyle's quest :wub: all time fav! platformer mixed with rpg, perfect formula!
and of course i play a lot of
LittleSoundDj h34r: ... HOWEVER, until ryleh does button-configeration in fgb32, it's a bit of a pain to do some common operations.