This game's concept and turn-based action makes for a really fun experience. It's also quite challenging, and the special power upgrades add to the stealthy and head on fighting strategies to give you more approaches to your ennemies. However the game has some really horrible bugs that'll leave you walking inside walls and be stuck there. When that happens you'll have to restart the mission. Even with those horrible bugs, I've still had lots of fun playing through the entire game.