I can name a few:
Harpy (Haunted Castle/Arcade Castlvania)
Demon Doll (Castlevania Chronicles)
Evil Fetus (Casltevania Chronicles)
Malformed Clone (Judge Dredd)
Met (nearly all Megaman games)
Buster Beetle (Super Mario Bros. 3)
Mochtroid (Super Metroid)
Fleamen (Most Castlevania games)
Warmech (Final Fantasy)
Bonebreaker (X-Men arcade)
__________________ Land of the free, home of the brave...
Do you think we will ever be saved?
In this land of dreams find myself sober...
Wonder when will it'll all be over...
Living in a void when the void grows colder...
Wonder when it'll all be over?
Will you be laughing when it's over?