Off the top of my head?
Tales of Phantasia PSX
Tales of Destiny
Tales of Eternia
Tales of the Abyss
Tales of Legendia
Tales of Vesperia
Tales of the World: Radiant Mythology
Tales of the World: Radiant Mythology 2
Tales of the World: Radiant Mythology 3
Hyperdimension Neptunia
Ar Tonelico 3 >__>
Super Smash Bros.
Super Smash Bros. Melee
Super Smash Bros. Brawl
Pokemon Red
Pokemon Silver
Pokemon Emerald
Pokemon Diamond
Pokemon Black
Eternal Sonata
Atelier Iris: Eternal Mana
Atelier Iris 2: The Azoth of Destiny
Atelier Iris 3: Grand Phantasm
Lost Odyssey
Sonic Adventure 2
Dragon Quest IX
Mario Kart 7
Gears of War
Gears of War 2
Gears of War 3
Halo 2
Call of Duty 2
Call of Duty 3
I'm sure there's way more but can't think of them atm.
Jesus, that's a lot of
Tales. Much respect. Actually, a crapton of excellent games, by the looks of it.
Final Fantasy VIII only. Don't know why, it wasn't even that good.
what is this
Anyway, my list (which I'm not going to verify, as some people seemingly have) probably looks like:
Final Fantasy VII, VIII, IX, X, and XII
Tales of Symphonia and Legendia
Super Smash Bros. Melee (I would have thought Brawl, too, but iirc, the 100 hours is the only challenge I still haven't finished)
Mana Khemia 1 and 2
Pokemon Sapphire
Dragon Quest VIII
Skies of Arcadia
And possibly Golden Sun: The Lost Age, Kingdom Hearts II, Disgaea 3, and Paper Mario: The Thousand-Year Door
Probably Pokemon Crystal (used to play all the time when I was kid) had a lot of level 100s xD.
Oh, and I guess some Final Fantasy games. I don't think those count cuz I leave them on when I don't find save points...
You bring up a pertinent point about my list, though; although I'm pretty certain that if I were to check, any of those games would be 100+ hours, I have a nasty habit of leaving them on, elevating my playtimes to ridiculous levels. For instance, I don't think I've spent over 500 hours on Mana Khemia, as my playtime would indicate I have.
Also, the only level 100 Pokemon I've ever had were either daycare-cheated with the Gamecube GBA player to run infinitely up the sandy slopes in generation III, or missingno-rare candied in generation I. I'm still pretty proud that I was able to dedicate enough time to have a team of almost-level 80s in Sapphire, though.