31. "Mario Tennis"

Release date: August 28, 2000

Platform: Nintendo 64, Nintendo 3DS, Nintendo Wii U

Buy it here.

With simple controls — you press A or B, plus your directional stick, to hit the ball in different ways — "Mario Tennis" was an extremely addicting game for the Nintendo 64, especially when you had four players at once. It received critical acclaim for its accessibility as well as its physics.