Not much to say, this game is very much what you see is what you get. Yeah it borrows a lot from DOOM and others, but the good level design and satisfying guns make for a great time. There's even an included level editor and browser, so you can play lots of high quality community creations as well.

A couple major issues: the checkpoint system is too forgiving, you simply respawn without really losing anything, so I recommend playing on hard or even very hard so enemies can actually cause an inconvenience (You can switch difficulty anytime). Final few levels drag on, and theres no ending, it just teases the DLC while also having a really lame boss fight.

Despite a couple problems though this game was a really good time, not everything needs to reinvent the wheel, just being really good at rolling can be enough to be worth the time.