The game is overall pretty fun but the battleship mini game is not. It basically favors players that have the most crystals. I just played a game and watched the opponent destroy my five randomly placed ships before I even had a turn simply because he carpet bombed the maps using pay items. If you are a new player and using your crystals to level your tower, you may not have a abundance to spend, allowing for people with a excess to literally wipe you off the map. Too many rewards also. Messy.