Honestly, I havent experienced the crashing issues others have mentioned on my iPad 3 (knock on wood) and Im on the third "world." There is a little too much grinding in the game as youre leveling up your planes, but its a pleasant enough gameplay experience and hasnt lost me yet. Dig the graphics and challenge... Reminds me a bit of Jamestown, except without the volume of content. Controls are a bit driftier than the controls many iOS shooter fans have come to love in Caves games, but they still feel good (they dont feel laggy or slow, like the iOS version of Raiden). Overall, I hope the debs continue to develop this game. It has great potential and is totally worth the $1 asking price. UPDATE: Just beat the final boss and not a single crash. Assuming those experience crashes are on older devices. Anyway, I seriously hope new content is released eventually. Id totally pay for some new levels & planes. Pretty burnt out on the three included worlds after all the grind that was required to upgrade my planes (and I didnt even max them out). Again, this is a solid shooter and Ive really come to like the controls and play mechanics. Well done.