Wicked fun, but needs update – ARDrone Sim: Zombies Review

Very laggy and constantly crashing in OS7. Fun, but gets 2/5 from me. Additionally, several times I've achieved high scores but it doesn't show up on the leaderboard. Frustrating. On a good note, I feel like I could fly a quad drone when the day comes and I really have one.
Review by buck.link.1 on ARDrone Sim: Zombies.