| Game Name | Category | Picked | Completed | Owned |
|---|---|---|---|---|
| Justice League: Chronicles | Kid's Show | ✔ | ||
| Justice League: Injustice for All | Kid's Show | ✔ | ||
| KAO the Kangaroo | Normal | ✔ | ||
| Karnaaj Rally | Other Sports | ✔ | ✔ | ✔ |
| Kelly Slater's Pro Surfer | Other Sports | ✔ | ||
| Kerplunk! / Toss Across / Tip It | Normal | ✔ | ||
| Kid Paddle | Normal | ✔ | ||
| Kid's Cards | Normal | ✔ | ||
| kill.switch | Normal | ✔ | ✔ | ✔ |
| Killer 3D Pool | Other Sports | ✔ | ✔ | ✔ |
| Kim Possible 2: Drakken's Demise | Kid's Show | ✔ | ||
| Kim Possible 3: Team Possible | Kid's Show | ✔ | ||
| Kim Possible: Revenge of Monkey Fist | Kid's Show | ✔ | ✔ | ✔ |
| King of Fighters EX2: Howling Blood | Normal | ✔ | ||
| King of Fighters EX: Neo Blood | Normal | ✔ | ✔ | ✔ |
| Kingdom Hearts: Chain of Memories | Top100 | ✔ | ✔ | ✔ |
| Kirby & the Amazing Mirror | Top100 | ✔ | ✔ | ✔ |
| Kirby: Nightmare in Dream Land | Top100 | ✔ | ||
| Klonoa 2: Dream Champ Tournament | Top100 | ✔ | ||
| Klonoa: Empire of Dreams | Top100 | ✔ |