Genres (second attempt)

[Kugyince]

Shooter/Scroller - 1943, R-Type
Shooter/1st-Person - Top Gun, Doom
Shooter/Arcade - Galaga, Space Invaders

Platform/Arcade - Joust, City Connection
Platform/Adventure - Metroid, Clash at Demonhead
Platform/Sectioned - SMB, Sonic

Combat/Beat-em-up - Double Dragon, River City Ransom
Combat/Fighter - Street Fighter, Mortal Kombat

Sports/Olympiad - Crash and the Boys
Sports/(sport here) - Baseball, Racing, etc...

Strategy/Puzzle - Lolo, Boxxle
Strategy/Adventure - Shadowgate, Deja Vu, Myst
Strategy/Simulation - Rampart, North and South
Strategy/Action - Tetris, Loopz
Strategy/Card & Board - Chess, Blackjack

RPG/Adventure - Crystalis, Secret of Mana
RPG/Western - Dragon Warrior I
RPG/Japanese - Final Fantasy
RPG/Collectable - Pokemon

Interactive Fiction - Zork

I'm sure I missed some.