Gilgamesh --
concept
research
testing
debug and tools coding
website and build maintainence
publicity
dos and windows builds

Laguna --
design
main program
asm optimizations
documentation
publicity

Damian M Gryski --
SDL port
various bugfix patches

Ralf Hoffmann --
Linux joystick code
SDL joystick bugfix

David Lau --
SDL joystick code

Mattias Wadman --
help with OpenBSD portability issues
LCDC behavior information

Matthew Conte --
DOS sound code
thinlib

Markus F.X.J. Oberhumer --
SDL fullscreen code

Dave Kiddell --
Windows port (SDL+mingw32)
SDL bugfixes

Magnus Damm --
YUV colorspace code
SDL YUV hardware scaling support

Gerd Knorr --
fbtv, from which mga accel code was taken

Jonathan Gevaryahu AKA Lord Nightmare --
tons of help improving sound emulation!
color filter code and default filter values
misc debugging support

Neil Stevens --
collecting samples for sound channel 4 (noise)

David Madore --
public domain "inflate" decompressor

Hii (author of TGB) --
lots of info on various memory mappers