Actually, my collection is about Pokemon. Although I have a lot of other games, is more than nothing Pokemon. So, a quick list:
Pokemon Red
Pokemon Yellow
Pokemon Gold
Pokemon Silver
Pokemon Crystal
Pokemon Ruby
Pokemon Emerald
Pokemon Red Fire
Pokemon Mystery Dungeon: Red Rescue Team
Pokemon Ranger
Pokemon Ranger: Shadows of Almia
Pokemon Ranger: Guardian Signs
Pokemon Platinum
Pokemon Soul Silver
Pokemon Mystery Dungeon: Explorers of Sky
Pokemon White
Megaman Battle Network 5
Megaman Battle Network 5 Double Team DS
Megaman Zero Collection
Golden Sun
Goledn Sun: The Lost Age
Golden Sun: Dark Dawn
Chrono Trigger DS
Dragon Ball Z Budokai Tenkaichi 2
Dragon Ball Z Budokai Tenakichi 3
Rayman 2: Revolutions (it's almost the same than the great escape, but for Play Station 2)
Crash Bandicoot
Crash Bandicoot 2
Crash Bandicoot 3
Crash Team Racing
Crash of the Titans
Naruto Ultimate Ninja 3
Naruto Shippuden Ultimate Ninja 4
Naruto Shippuden Ultimate Ninja 5
The Treasure Plante
Luminous Arc
Luminous Arc 2: Eyes
The World Ends With You
Megaman X
Megaman X2
Megaman X3
Megaman X4
Megaman X5
Megaman X6
Megaman X7
Megaman X8
Megaman X Collection
Adventure Island
Adventure Island 2
The Legend of Zelda: A Link to the Past and Four Swords
The Legend of Zelda: Ocarina of Time
The Legend of Zelda: Majora's Mask
The Legend of Zelda: The Minish Cap
The Legend of Zelda: Phantom Hourglass
The Legend of Zelda: Spirit Tracks
Super Mario Bros
New Super Mario Bros
Super Mario 64
Mario and Luigi: Partners in Time
Mario and Luigi: Bowser's Inside Story
Spyro the dragon
Spyro 2 Ripto's Revenge
Spyro 3
The Legend of Spyro: A New Beginning
The Legend of Spyro: Dawn of the Dragon DS
I'll probably add some more later