Summary: Excellent side scrolling shooter that goes back to the good old days of gaming. Great graphics, fun game play. The DS's last big hurrah before the 3DS took over but that doesn't mean you shouldn't play this immediately.
Summary: I really like this game, it is a very refreshing metroidvania style game. I think that it could use some work though. First there is barely any reason for exploration. Second there are interchangeable weapons in the game, but they are either overpowered or extremely weak. Otherwise, this is a pretty decent game.
Summary: Plays well on the 3ds. In my opinion, its much better short-and-sweet version of Alien 3 for the SNES. Not very difficult. Yes, when characters die, its permanent. But there are plenty of other soldiers in the field to take their place. The only real difference between the characters is their cartoon face during the few cut scenes. For $10, I do not regret this purchase. It's not a masterpiece but its easy to pick up and put down for a total of around 10 hours.
Summary: Good looking 2D sprites and backgrounds, looks and plays like a Metroidvania (with Aliens!). I have only played 2 hours, feels very solid, but has not managed to keep me very engaged. 3 stars so far.