OK, so here's a top 103 list of games. This is mostly a personal list versus me more objectively listing, like, THE BEST. The games are broken down by the system I first played them on. No particular order.
Mega Man 2
Super Mario Brothers 3
Zelda 2
Dragon Warrior 4
Kirby's Adventure
Wizards and Warriors 3
Final Fantasy 4
Final Fantasy 6
Chrono Trigger
Super Mario World
A Link to the Past
Super Metroid
Street Fighter 2
Earthbound
Super Mario RPG
Super Mario Kart
Actraiser
EVO
Illusion of Gaia
Lufia 2: Rise of the Sinistrals
Super Mario 64
Mario Kart 64
F Zero X
WCW vs NWO Revenge
NFL Blitz 2000
Pokémon Puzzle League
Animal Crossing
Resident Evil 4
Wind Waker
New Super Mario Brothers Wii
New Super Mario Brothers U
Super Mario 3D World
Breath of the Wild
Mario Maker
Tetris
Super Mario Land 2: Six Golden Coins
Warioware: Mega Microgame$
Metroid Fusion
Metroid Zero Mission
Nine Hours, Nine People, Nine Doors
Castlevania: Dawn of Sorrow
Animal Crossing: New Leaf
Link Between Worlds
Chrono Cross
Castlevania: Symphony of the Night
Tony Hawk Pro Skater 2
Metal Gear Solid
Street Fighter Alpha 3
Silent Hill
Tekken 3
Final Fantasy 7
Final Fantasy Tactics
Devil May Cry
Metal Gear Solid 3
Kingdom Hearts
Tony Hawk Pro Skater 3
Marvel vs Capcom 2
Capcom vs SNK 2
Katamari Damacy
Odin Sphere
Final Fantasy 10
Final Fantasy 12
Dark Souls
Destiny
Marvel's Spider-Man
Red Dead Redemption 2
Death Stranding
Bloodbourne
Dark Souls 3
Assassin's Creed Oddysey
Persona 4 Golden
Halo
Star Wars: Knights of the Old Republic
Street Fighter 4
Halo 3
Halo Reach
Dragon Age: Origins
Mass Effect
Mass Effect 2
Mass Effect 3
Geometry Wars 2: Retro Evolved
Fallout 3
Portal
Portal 2
Oblivion
Super Hexagon
X-Com
Diablo 2
Diablo 3
Hearthstone
StarCraft
Civilization 3
Civilization 4
Civilization 5
Sleeping Dogs
Dead Cells
Rogue Legacy
Rogue Legacy 2
Enter the Gungeon
Fallout: New Vegas
Marvel's Guardians of the Galaxy