This game rocks! The graphics are great, the frame rate is smooth, and the gameplay is fun. Definately a must for the iPhone! The controls are responsive and dont crowd the screen. Although strange at first, the leveling system is quite appropriate for the iPhone "pick up and play" style of gaming. During the Campain Mode, if you die you can continue on the current level but you will loose all you Skill and Perk points. Be warned - watch what you choose if you die during Campain Mode! If you like Metal Slug or Castle Crashers then check this game out! Update: The update is great! The improvements to the perks/abilities panel alone make this a 5-star game! Download it for a steal at 0.99!