Ratchet: Deadlocked for the PS2. It was just too different from the first 3, and not in a good way. It limited the freedom you had in the others and didn't feel as open-ended. Plus it got rid of the RYNO. I loved using the RYNO, and the Harbinger just doesn't compare. I couldn't play it again after I beat it.
5. CoD4. I looove the main story, and the multiplayer is awesome.
4. Kingdom Hearts. In my opinion, it was better than number 2. Number 2 was a bit ridiculous.
3. Pokemon Diamond. I spent forever playing that game. I have about 400 hours stored onto that chip.
2. The World Ends With You. I love using two characters in combat, and the music is cool, too.
1. Okami. Beautiful, original, fun game. And Gamesradar has been praising it since it came out. Need I say more?
I'm gonna have to say unskippable cutscenes. Those can get so annoying sometimes. I remember playing Kingdom Hearts, and I got to the part where you have to fight Riku in his dark form (or as I like to call it, weird skirt thing) in Hollow Bastion, and I was pretty low leveled for that part of the game. As anyone who has played the game knows, Riku is one of the most annoying, difficult bosses in the game. So I got to watch the cutscene right before the fight over and over and over again. So annoying...
Aw man, I remember trying to beat Kurt Zisa from the original Kingdom Hearts over and over and over again. Ever time I came close, he would just pull out another move that destroyed half my HP in one hit. I finally beat him, get nothing, and.... then came the Phantom.
Sadly, I never beat Ocarina of Time. I got stuck in the Fire Temple, and then I just stopped playing for some reason. Now when people talk about how epic the ending to OoT is, I have no idea what they are talking about. Sigh...