Donkey Kong II
You play Donkey Kong Jr and try to climb up and save Donkey Kong.

Frogger on C64.

Ride around on your flying ostrich and defeat the enemy knights riding buzzards. I think the developers had a slight lack of knowledge of how jousting works or the details on the size of birds.

Pole Position
Drive around until the engine sound make you strangle yourself with the controller cord.

Ultima III: Exodus
Similar gameplay to Ultima 2 but three times the grid. Kill, loot, weapons, stats, repeat. Boss defeated by punched cards is a first.

Wizard of Wor
Arcade style shooter that supports two players.