This is a terrible piece of software, full of glitches, crashed twice and the scripting broke once forcing us to restart the level. Its the same as the earlier Ben 10 game with different levels and characters with most of the faults of that game and a few more thrown in for free.
Two player is glitchy, with the trailing player being warped forward to keep up with the leader. Then in other areas both players are allowed to move off screen making play difficult to say the least.
It is impossible to tell P1 from P2 on if they have the same character.
Some levels are almost impossible with 1 player others are impossible with 2 because you don't physically fit on platforms together.
Doesn't support EDTV so graphics are a bit poor quality.
My son is a big Ben 10 fan so he loves it. I give it one star, he gives it 5, we split the difference.
If you don't know who Ben 10 is, or don't care, then stay well away.