Green Yamo is a COGS remake of the 1984 Commodore 64 game Bruce Lee.
The graphics on Bruce Lee were incredibly basic and look pretty bad full screen on a modern monitor. TIX made a much better set of sprites that have been put into a version of the Atari original. He's currently working on an updated set of graphics in a higher resolution for Green Yamo. They are still retro looking but are a higher resolution so will look good on a modern display. Check out his WIP sprites in the screen shot above.
I'm going to get the first 'level' working and release this as a demo. If you'd like to get involved and make the rest of the game, get in touch. I'll be available to help and add any features you need to COGS. Some programming experience would help but it's not essential. Let me know.