Some games that i have spent some considerable time enjoying in almost no order:

Super Contra
Super Mario Bros 2
The Goonies 2 *
Excitebike
River City Ransom *
Ninja Gaiden
Kid Niki
Rockin Kats *
Double Dragon
FUCK Battletoads btw
Gauntlet

Final Fantasy 6 *
Legend of Zelda
LoZ: A Link to the Past *
Loz: Wind waker *
Chrono Trigger *
Super Mario Kart
Super Metroid *
U.N. Squadron *
Donkey Kong Country (one of the best soundtracks ever) **
Super Mario Land
Adventure Island
Bomberman series (mostlyish)
Contra 3 *
Super Ghosts & Goblins

Sonic & Knuckles
Golden Axe 2 & 3 *
Streets of Rage 2
Gunstar Heroes
Rocket Knight

Bonk's Adventure

Destruction Derby
Tobal No. 1 *
Bloody Roar
Einhander *
Red Faction
Castlevania: Symphony of the Night **
Resident Evil 2

Burnout 3
Shadow of the Colossus **
Breath of Fire 5: Dragon Quarter
Silent Hill 2 *
Contra: Shattered Soldier *
Psychonauts

Jet Set Radio Future **
Marvel vs Capcom 2... and sort of 3 *
San Francisco Rush 2049 *
NFL Blitz *

Contra: Hardcorp Uprising
Street Fighter 2 turbo hyper tiger uppercut
Street Fighter Alpha 3
Street Fighter 4
Tekken Tag Tournament
Tekken 3 & 6
Soul Calibur 2 & 4 *
Wipeout XL, 2097, and Fury

Resident Evil 1 remake for GC *
Resident Evil 4 for GC *
Super Mario Sunshine (Fuck off, it was brilliant) *

Scott Pilgrim Vs. The World *
Bioshock
Need For Speed: Hot Pursuit
God of War 3
PacMan Championship Edition

Borderlands
Borderlands 2 *
Call of Duty (WW2 ones)
Battlefield 2
Super Meat Boy *
VVVVV *
Braid
Amnesia: The Dark Descent *
Team motherfuckin Fortress 2 ***
Serious Sam series *
Portal series *
Left 4 Dead series *
Half life series
Space Quest series (especially 4) *
Police Quest series *
Kings Quest series
Monkey Island series *
Dead Space 1 & 2 *
TCOR: Escape From Butcher Bay
Plants Vs Zombies
Shatter *
Painkiller *
Mirrors Edge *
Doom series (esp doom 2)
Aliens Vs Predator 2 (the good one) *
Minecraft *
Starcraft (the first ones)


okay, fuck, ill think of more later.
*'d for awesomeness.