Worth buying with 90% discount coupon. Other than that the price is too big for this simple shoot em up in space game. It has nice graphics, but nothing spectacular. The humour and actors from the movie, but maybe too much humour (Madam President is annoying as hell :)). Nice acting, though all storyline is presented in a small video chat window at the top of the screen. It's ok though for a game costing a few bucks, not 20. One bad thing about dialogs is that they often run during the combat, so you can't really concentrate on them. And nazi general speaks German and there are only subtitles translating it. So you have to shoot enemies and read the text at the same time. Bad, bad design. Dialogs should be out of battles or battles should pause or something. Gameplay becomes repetitive fairly quickly, though sometimes you have to defend or capture something, but most of the time you have to blast enemies. There are several types of enemies, some are tougher. Some require to shoot at the right moment (like Zeppelins, you should shoot into opened docks, but they stay open for such a short time..). There is some strategy to the game, as you should first destroy all the smaller annoying ships, before going for the big ones. You should watch your shields and energy and transfer energy to shields, weapons or engine according to the situation. But if playing carefully you probably will never die. Even if you do, you will go back to the latest save (every major space jump creates auto save). You are also allowed to change ships sometimes and buy upgrades. Other ships are interesting and have different purposes, like Canadian bomber carrying nukes to destroy asteroids, but most of the time you will fly Dundee australian bomber. Another annoying part is that you have to gather salvages of the blasted enemies to sell them to buy upgrades. You blow the ship, you fly to collect the salvage and you do these hundreds of times.. Well, at least there is an achievement to collect 500 scraps and buy all the upgrades for a few ships. All achievements are rather easy (just don't forget to visit all the stations to get all the side missions), but one should try to get them on the first run collecting as many money, kills and salvages as possible, because trying to replay chapters after completing the game will make achievements glitch and not register.
All in all, i was pleased with the recreation of the atmosphere of the movie (music, characters, space combats). Last mission was too simple, short and a bit awkward (to fly inside the big ship). The ending was shallow. But it was fun, short game, which doesn't require much skill. For the price i got it i'm satisfyed, and maybe even try some of the DLCs. One of them let you fight for the Moon nazis, and another one even introduces RTS elements of commaning the fleet.
P.S. one can always try a demo to get an impression.
Update: don't buy DLCs, they are total ♥♥♥♥♥♥♥♥..