There are a lot of classic arcade characters, here is my top 20 (in no order)
Peter Pepper
Mario Bros.
Donkey kong
Otto
Alex Kidd
Ax Battler
Donkey kong
Nick & Tom
Bub & Bob
Shinobi
Sagat
Mike Haggar
Captain Commando
Mess
Ms. Pac man
Dig dug
Doh
Pac man
Bubbles dude
Robotron
Discuss...