Mobygames user Multimedia Mike has a list of games that aren't on the Mobygames database yet which will be very useful if your looking to add some games to the database.

The list is comprised of US and/or European releases for

• 3DO
• N64
• NES
• Sega Dreamcast
• Sega CD/32X
• Sega Game Gear
• Sega Master System
• Sega Saturn
• SNES
• WonderSwan + WonderSwan Color

And a few games for other platforms

View the lists here

http://multimedia.cx/mobygames/