This game is awesome. Great graphics, good controls, good storyline. The rapid fire guns are awesome. This is a fun fast paced game, just blasting away hordes of enemies. 3.99 is a bit expensive if you collect all of the games, but it much less expensive then all the quarters you would spend in the arcade. NEOGEO games were literally quarter eaters in the 90’s. Now you get unlimited credits, and an easy save mode, so you can finish each game at your leisure. HAM did a great job making these for mobile. Thank you.