A great version of the classic Worms series. Easily worth the price tag, and a must have for Worms fans.
Other than that, I like everything else about the game. The controls are slower than the PC, which enables more accuracy and movement is simplified by only having two jumps, forward and a backflip.
You can still customise the playing field with a variety of options (again, limited compared to Arm).
But probably my favorite aspect of the game is the AI. They are smart, and reactive (even on low skill levels) and they will actually miss you some of the time! It's like they actually put some human error into the bots.
If you are a Worms fan and own a PSP, stop reading and spend the money.... it is definetly worth it. If you have a PSP and have never played Worms before, shame on you and go get this game. And finally if you are a fan and don't have a PSP... Go buy one! And then get the game!
-McSqueeb