Sonic the Hedgehog 3 (EPROM prototype)

The Sonic the Hedgehog 3 EPROM is a test cartridge currently owned by LocalH, who bought it from PACHUKA for about $100. There is no battery on the PCB, therefore saved games don't persist when power is turned off; however, saved games do persist while the system is powered on.

The ROM was finally dumped on July 25, 2005. The binary image was found to be identical to that of the US NTSC retail version of Sonic the Hedgehog 3.

See EPROM for a description of what an EPROM is.