Starts off very fun, with it giving you the choice between doing the level legitimately or going for a more destrucive, chaotic approach. Only the completion time for a level really matters towards your end rank, and it's lots of fun fooling around and causing a lot of destruction or trying to avoid it (and failing). However, the further you get in the game, the more it gets rather frustrating instead of fun, with one or two floors having essentially 'escort missions' where the AI either doesn't accept a more creative answer, or it gets stuck on level geometry and it's a hassle getting it unstuck. To top it all off, it crashed on us a few times as we played, and though not a huge problem since most levels can be cleared pretty fast if you know what to do, it does take away from the fun of destruction a bit if you also need to watch out you don't overload the game and lose progress.

Still a great time, especially in co-op and probably best experienced that way, but later levels became a tad too frustrating to score the game higher.