DukeNukem (GBC), Doom (Dingux), Super Mario Land Hacks (GB&NES), Motoracer Advance (GBA), Road Rash (GG), New Giana Sisters (Dingux), Desert Falcon (Atari 7800), Mr. Do (Colecovision), Donkey Kong (Atari 8bit), Park Patrol (C64), Friday 13th (D64), Vindicators (NES), F1 Race (NES).
Surely 90% of my active Dingoo-time I oscillate between these.