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
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
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.