JMEBoy is a Java-based Gameboy and Gameboy Color emulator for mobile devices. If you want to play Gameboy games on your mobile phone you should try this emulator.

Joerg Jahnke has released an updated pack but read more on your own:

I just added a JMEBoy 1.1 version containing some pre-bundled games. This might be interesting for those of you who don’t have a mobile device supporting JSR-75 and who don’t want to modify the .jar file and add games themselves.

The following games have been downloaded from pdroms.de and are bundled with the .jar file:
– CrazyZone.cgb
– Drymouth.gbc
– EggRacer.cgb
– GBamaTron.gb
– Huelsi.cgb
– IronHike.cgb
– JetPakDX.cgb
– Jumpik.gbc
– LittleFantasy.cgb
– PuzzleX.gb
– Q-Bert.cgb

http://sourceforge.net/forum/forum.php?forum_id=840932