For fun, I decided to tally up all the responses so far. Note that I only counted individually named games, meaning if a poster said something like "the Ratchet & Clank series" then I didn't count it.
- Banjo-Kazooie (54)
- Astro Bot (16)
- Jak and Daxter (16)
- Psychonauts (13)
- Rayman 2: The Great Escape (12)
- Ape Escape (11)
- Spyro the Dragon (10)
- Crash Bandicoot 2 (8)
- Prince of Persia: The Sands of Time (6)
- Sly Cooper and the Thievius Raccoonus (6)
- Crash Bandicoot (5)
- Mirror's Edge (5)
- Sonic Adventure (5)
- Jet Set Radio (4)
- Ratchet & Clank (4)
- Sonic Adventure 2 (4)
- A Hat in Time (3)
- Croc (3)
- Jak II (3)
- Portal (3)
- Portal 2 (3)
- Rocket: Robot on Wheels (3)
- Sly 2: Band of Thieves (3)
- Sonic Colors (3)
- Sonic Generations (3)
- Spyro 2: Ripto's Rage (3)
- Tomb Raider II (3)
- Vexx (3)
- Ape Escape 2 (2)
- Ape Escape 3 (2)
- Banjo-Tooie (2)
- Billy Hatcher and the Giant Egg (2)
- Conker's Bad Fur Day (2)
- Donkey Kong 64 (2)
- Jet Set Radio Future (2)
- Ratchet & Clank Future: A Crack in Time (2)
- Sonic Robo Blast 2 (2)
- Sunset Overdrive (2)
- Tomb Raider (2)
- A Short Hike (1)
- Cloudbuilt (1)
- Crackdown (1)
- Crash Bandicoot 3 (1)
- ICO (1)
- Jersey Devil (1)
- Katamari Damacy (1)
- Kya: Dark Lineage (1)
- Marble Blast Ultra (1)
- Mystical Ninja Starring Goemon (1)
- NiGHTS into Dreams (1)
- Pac-Man World 2 (1)
- Prince of Persia: The Forgotten Sands (Wii) (1)
- Ratchet & Clank: Going Commando (1)
- Ratchet & Clank: Up Your Arsenal (1)
- Rayman 3: Hoodlum Havoc (1)
- Rayman Legends (1)
- Rodea the Sky Soldier (1)
- Shadow of the Tomb Raider (1)
- Shinobi (1)
- Sonic Unleashed (1)
- Splatoon (1)
- Splatoon 2 (1)
- Super Lucky's Tale (1)
- Trackmania (1)
- Ty the Tasmanian Tiger (1)