If you're a metal slug fan, I'm sure this game is great. I think this game is really annoying however. I love being grenaded off the screen and getting fucked for a steam achievement.
The steam achievements are kinda broken as well for me. I played through the entire campaign with a friend online only for it to not trigger. I thought maybe it had to be local multiplayer to get it but it still didn't trigger :/ Had to cheat it in