1. Tom Clancy's Splinter Cell: Double Agent
I hate the PS2 version. It looks terrible and doesnt make sense at all.
2. Conflict: Vietnam
The second level ruins the game. Fuck that fucking tank!
3. Devil May Cry 4
Pointless and stupid. Back tracking is no way to extend the length of a game and the combo moves are impossible to pull off.
4. Beijing 2008: The Official Video Game of the Olympic Games
The events are unbelievably hard to do.