Multi game cartridge for Gameboy Color. According to the label there are several interesting titles, including Frogger, Snoopy, Smurfs, Bubble Bubble 3, and Crazy Castle 3. 

Cartridge only in very good condition. 

For decades we have avoided listing these kinds of counterfeit multiple game cartridges, but now that emulation have made most games available online, they have become collectible in their own right. Often these cartridges have strange variations of original games, and even completely new games based on popular themes.