Insert huge list.
Gameboy:
Jurassic Park;
Super Mario Land;
Super Mario Land 2: The 6 Golden Coins;
Wave Race;
Pokemon Red, Blue and Yellow;
Rescue of Princess Blobbette;
Road Rash.
Gameboy Colour:
Pokemon Gold and Silver;
Legend of Zelda: Oracles of Seasons/Ages;
Pokemon Pinball;
The Smurfs (yeah, seriously, what the hell?).
Gameboy Advance:
Sonic Advance 1, 2, and 3;
Sonic Battle;
Mario Kart: Super Circuit;
Super Mario Advance 1, 2, and 3;
Rayman Advance;
Legend of Zelda SNES rerelease;
Pokemon Sapphire.
Nintendo DS:
Yoshi Touch & Go;
Mario Kart DS;
Ridge Racer DS/05;
Metroid Prime: Hunters;
New Super Mario Brothers;
Super Mario 64 DS;
Sonic Rush.
Gamecube:
Super Smash Bros. Melee;
Super Mario Sunshine;
Starfox Adventures;
Soul Calibur II;
Sonic Heroes;
Sonic Adventure 2 battle;
Sonic Adventure DX;
Shadow the hedgehog;
F-Zero GX;
Pokemon Colloseum;
Paper Mario: The Thousand Year Door;
Metroid Prime;
Mario Party 4;
Mario Kart: Double Dash;
Luigi's Mansion;
Final Fantasy: The Crystal Chronicles;
Dragonball Z Budokai;
The Legend of Zelda: The Wind Waker;
Viewtiful Joe;
Gameboy Player. (not technically, but it allows me to play more games on my GCN)
Wii:
Resident Evil: Umbrella Chronicles;
Red Steel;
Wii Sports;
The legend of Zelda: Twilight Princess.
Playstation:
Medal of Honour;
Final Fantasy VII;
Some grand prix kart game;
Some rally game;
It's all ancient history.
Playstation 2:
Dragonball Z Budokai 2;
Tokyo Extreme Racer Zero;
Final Fantasy X, and X-2;
Final Fantasy VII: Dirge of Cerebrus;
Penny racers;
I can't rememeber, but probably about 3 times this amount.
PC:
FEAR (And expansions: perseus Mandate and Extraction point)
Crysis;
Half Life 2 (+ Episode 1, 2, Lost Coast, and Deathmatch);
Rayman 3: Hoodlum havoc;
Rayman 2: The Great Escape;
Rayman: Maths and English (I got this years ago.. jeez. The actual platforming is hard as hell, though XD);
Rayman Gold. Never played it, as it isn't compatible with XP or Vista..;
Half Life (Expansions, also; Blue Shift and Opposing Force).
These are off the top of my head. Don't rememebr too much.