[sir shmoogle]

Main ones one Mega Drive:
Sonic, sonic 2, sonic 3, sonic and knuckles, gunstar heroes, twin cobra (please release on the VC). Lots more but they were my faves.

Main ones on Game Boy colour:
Pokemon Red, pokemon gold, dragon warrior monsters, dragon warrior monsters 2, zelda link's awakening DX, zelda (not the seasons one the othere one, cant think of the name)

Main ones on PS1:
Spyro 1, 2 + 3, crash bandicoot 2, speed freaks, need for speed 2, x-men mutant academy 2

Gamecube:
Baten Kaitos 1,Battallion Wars, Beyond Good and Evil, billy hatcher,Donkey konga,donkey kong jungle beat,fire emblem path of radiance, F-zero GX, Fifa 06 +07,freedom fighters,ikaruga,lego star wars 2, lugi's mansion,MOH european assault,metroid prime 1+2, metal arms, mario kart DD,paper mario 2, pokemon colloseum, rayman 3, sega soccer slam, shadow, sonic adventure 1+2, sonic heroes, soul calibur 2, spiderman 2, spartan total warrior, starfox adventures and assault, star wars bounty hunter, rogue leader , rebel strike and clone wars, super marion sunshine, super moneky ball 2, super smash bros melee, tales of symphonia, hulk ultiamte destruction, timesplitters 2 +3, splinter cell chaos theory, XGRA, zelda wind waker.
Yes i went a bit crazy for the gamecube i know.
DS:
Advance wars, lostmagic,maro kart,metroid prime hunters, mr .driller, pac pix,sonic rush 1 + 2,mario64,wario ware touched,yoshi's island,pokemon pearl, zelda phantom hourglass

Main GBA ones:
Advance wars 2,pokemon ruby, Final fantasy 1,2,4 and 6, golden sun 2,fire emblem sacred stones, zelda minish cap, astro boy, metroid fusion, mario bros 3, sonic advance 2

Finally the wii:
Excite Truck, heatseeker, resident evil 4 and umbrella chronicles, ghost squad, red steel, sonic, super mario galaxy, super monkey ball,mario kart, mario strikers, pro evo 2008, MOHH2, super smash bros brawl, no more heroes