Pitfall: hours of fun

Choplifter: a must play game at least once

Bounty Bob: best platformer

Mony on the run: maybe best platformer too, best soundtrack of all time in all video games all categories (IMO)

Jet set willie: if you have thousands of hours, and don't care about the bug where if you jump into another screen and dies before touching the ground, the death jump replays until all your lives are lost. The rocket launch is majestic though.

:-D