David Murray took the $20 Hummer Off Road Racing game and converted it into a working Commodore 64. Included on his site are instructions on how to hack the audio, video circuits to work better.

“Inside, it contains the Commodore 64 DTV chip, designed by Jeri Ellsworth. It is the same chip being sold inside the Commodore 64 DTV Joystick currently being sold in Europe. (DTV = Direct to TV) This chip is, in essence, and entire Commodore 64 reduced down to a single chip. However, it has many new features that make it more powerful than a 24 year old Commodore 64. It has new graphics modes, new sound features, a lot more RAM, and a Flash-ROM.”

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See page 2 for more pictures