Chip8 (SuperChip/ MegaChip8)
I like minimalistic programming, trying to squeeze everything out of a system, despite its contraints.
With only 35 opcodes/instructions, a maximum of 3.5K programsize and monochrome graphics of 64x32, the CHIP-8 is very minimalistic indeed! The SuperChip basically has the same specs, but with a 128x64 resolution and my own MegaChip8 extension allows for color and sound, while only adding a handfull of instructions to the original assembler.

These are the products i did for CHIP-8/SuperChip/MegaChip8.
Tools:
MegaChip Emulator (2007) - My CHIP-8 Emulator , also supports SuperChip and MegaChip8
MegaChip Devkit (2007) - All in one devkit for CHIP-8 / SuperChip and MegaChip8. Includes an assembler, tools and example code.
MegaBlinky (2007) - An updated version of the infamous Blinky game for the MegaChip8
Twisterbar demo (2007) - A Twisterbar demo to show some of the capabilities of the MegaChip8 extension
SuperWorm V4 (2007) - An updated version of the Worm/SuperWOrm game by R.B.
Astro Dodge (2008) - A game for the Chip-8 and SuperChip
Climax Slideshow (2008) - A slideshow for the SuperChip
Trip8/SuperTrip8 Demo (2008) - A demo for the Chip-8/SuperChip
Additionally, i've also ported many programs from other developer to Chip-Hires (64x64) and MegaChip8. You can find them in the program pack on http://www.chip8.com