Below you will find a list of the 20 most valuable and rare Sega Genesis games. Prices for games are always changing and so this valuable and rare Sega Genesis games list is continually updated depending on the changes in the market.
Much like the competition carts mentioned in the NES and SNES rare and valuable lists, Blockbuster World Championships II is a special promotional cartridge developed by Acclaim that was utilized in various Blockbuster stores during a contest they held to see who could get the most points in truncated versions of NBA Jam and Judge Dredd to compete for prizes. In the case of this Genesis game, the cartridge was never meant to be distributed.