While broken online it's still a ton of fun playing coop.
Platform: PC (Multiplayer I used a filthy peasants controller, but it's perfectly playable with just the keyboard which I used to play single player.)
Time to Completion: 1.5 Hours
Date Completed: January 4th, 2013
I really want to give this game a great for the amount of fun a friend and I had playing this game coop, but it's sadly just too broken to do so. No matter who hosted the non host player online lagged so bad that in certain parts of the game I had to have the host carry my guy over jumps because I just couldn't make it and I was all but useless in combat beyond spraying and praying my gun. Now ordinarily this would have ruined the game, but somehow the constant lag made the game a ton of fun and I couldn't stop laughing as my friend constantly ran into laser beams because my guy lagged off the pressure plate that was deactivating them or I ran into sentry turrets because my guy would lag past the safe zone into firing range. There were times I literally thought I was going to pass out from laughing because we were having so much fun.
The game itself however was pretty simplistic as far as gameplay goes, and if you don't have someone to coop with you on this game I wouldn't recommend playing the single player. The game shines in coop, but I found myself getting extremely bored with it while I was playing alone. The game consists of simply running around a very simple 2D world as you hunt for keycards to open doors while fighting extremely easy and simple enemies that go down without much of a fight. The most complex the games combat gets is when they introduce guys with a shield that require you to run behind them to kill them as they charge forward. While playing online you get the choice of picking a character to play as, but the only real difference with them is the weapons they carry and the look of the character. In single player however you play as one guy who gains access to different weapons that you can cycle through to get different play styles through the story. The big difference between online and single player is that single player does have a bit of a story that it shows with little animated cut scenes ever few levels that progress the story. As well there are these short 2D flying sections where you jet pack around fighting guys. Sadly it's not all that fun and is really just there to break up the corridor crawl the rest of the game is. The last big difference is that certain parts of the map have more of a puzzles aspect to them then they do in multiplayer. When online it's more of a platformer kind of puzzle solving to get to the end of a level, but in single player you have access to a mind control bug that you must use to throw at enemies and take control oft hem to hunt down switches to open doors for your guy to get through.
If you find yourself really loving the game I could see trying to replay the game online with one of the weaker guys for more difficulty could be a thing you try, but that's not a thing for me personally. As for the single player, I didn't really see much reason to play it more than once unless you are the type who wants to hunt down a hidden collectible in each map.
While I really liked the art design and animation of the characters -and thought the idea of fighting what are clearly Nazi themed birds entertaining- the games story itself is about as deep as an original Mario game where in the only context for why you are there is basically just to save the "princess". In this case a nurse. The story is bookended with two short little animations that set up the plot and conclusion but during the game itself it's just chat bubbles with Charley Brown style gibberish for voice with the only real voice acting being in the above mentioned cut scenes.
Despite all the flaws I had a ton of fun playing this game online with friend. Even if that fun only lasted a little over an hour and a half I had a blast the entire time. While I would give this game a personal Great rating for the fun I had with it, I just can't justify giving it anything higher then a Good because of the simple gameplay and technical problems. If you can get a friend that can appreciate the mayhem that comes from one guy being basically a bumbling fool that needs to literally be carried on the other guys shoulders over the large majority of the game, then I think you can have a ton of fun. If you can only play this single player I would probably pass unless you can find it on the cheap.