A very fun & challenging tower defense game.
Any fan of tower defense games, will know what to expect here. You build towers to defend your base from monsters. There are several different types of towers you can build and some work better against certain monster types. This is all standard fare when it comes to tower defense games, but it's all really well done. As you pass certain levels, you get upgrades to your character. One upgrade allows you to move much faster with your character as you run around the map building towers. Another lets you drop down mines which can be detonated from a distance.
The game is extrememly difficult and has the same trial-and-error gameplay that plagues the tower defense genre. And the game will not impress you in any way with it's presentation. The graphics are sub-par, but that is part of the "charm" of the 'PixelJunk' series as a whole. What doesn't have any charm, however, is the horrendous music. It took me all of about ten minutes before I just turned it off completely. And there is no storyline here whatsoever.
Even with those issues, this is one of the better tower defense games I have played. It's has some very interesting levels, addictive gameplay, and is very challenging in a good way. If you are a fan of this genre, and own a PlayStation 3, I would highly recommend downloading this PS3 exclusive.