My only wish is that it had system link so I can go through it again. For a game that looks so lame at first glance this has to be one of the best co-op experiences I have had. I first tried it out by myself and it felt to weak so I started it at the hard difficulty, My friend came over and from there we were completely hooked. The game plays like an arcade shooter but there is something in the back end that makes you come back for more. I have completed this game 100% not just one difficulty each and every one. I collected every weapon, which is in the 120 range. I did this because you basically cant get enough of the game.

So my friend and me play a good twenty levels (on the hard) or so when it becomes more and more difficult to beat them as we’re going along and it’s evident we may need to go back and replay a few levels to get our health up and may find some more weapons. The game’s story is there is an Earth invasion of giant bugs and robots and they come in the thousands. You are armed with a crappy gun to start and can pick up swag along the way. If you pick up a weapon box from some dead ant, spider, or mother ship you have to complete the level for it to save in your arsenal. Certain levels reap different weapons as we found out and some are only given at the completion of the game on specific levels.
On the start of each level you have access to all of you weapons and can hold two of them on each mission.

So even though I played on hard at first there is incentive to play the harder difficulty to get a strong weapon to finish the game on a lower level. You also get points for each of the difficulties and can toggle between them to get your attributes up to be able to take more of a hit. The end on the highest difficulty is insanely difficult but the reward is worth it.

Speaking of weapons there are missile launchers (good for mother ships and bulks of insects), turrets(good for flying robots and spiders), sniper rifles(good for giant Giant spiders and robots), acid and flame weapons(good for insects in tunnels), and bombs(good for anything coming to a location). There is a strategy with each level that I would not have figured being there but it is, an arcade onion full of layers. The game is a must buy.

Coop is a must as you have to save each other from onslaughts and time your reloads. There are level where one person has to do one thing like take out the mother ships while the other lays turrets to cover your rear. You have to load out weapons as a group or you wont make it out alive on some levels. All in all there at 52 levels if memory serves and after playing them on each difficulty and a lot of time more than once it tallied about 76 hours of gameplay I believe.

This is an extremely fun game playing offline co-op. There's approximately 50 levels to blast your way through. All the while you collect/upgrade new weapons which keeps it interesting and doesn't feel stale. The graphics are excellent and the explosions (especially for the bigger enemies) are epic in scale. Not much reason to go back to it after you beat it, but it's a fun ride while it lasts. If you game with friends in person, you have a good time with this one.

If you have little ones around, they might like playing this. Simple run-n-gun, blow up buildings, unlock lots of new weapons... great replayability!