What Ps2 games have I been missing?

[makingmusic476]

Is your entire ps2 collection listed in your profile?

If so, then get these:

Ico
Shadow of the Colossus
Dark Cloud 2 (much better than the original)
Jak 1-3 (and they ARE a must)

And if you have extra cash/time:

Sly 1-3 (Excellent games. I need to actually buy them one day)
Zone of the Enders 1/2 (I'm still trying to track them down new)
The Ratchet Series
Rogue Galaxy (I bought it but have yet to play it. It's only $20 at Circuit City right now)

As for Killzone, it was a pretty good game that was marred by technical problems. The texture pop-in and repetitive sound effects were extremely annoying, and the often dimwitted AI made parts of the campaign somewhat meh. The game had excellent presentation, however (some of the best graphics on the ps2), and it had the best online play of any ps2 game, imo. The offline multiplayer with bots was also great, and kept me entertained for weeks back when I first got the game.

I'd at least rent the game. While it's technical problems can be very annoying to some, the game is quite enjoyable to others. You can check out IGN's review to get a general idea of the positives and negatives of the game.