This is actually a great game, but of all of my App Store purchases, this is the most frustrating/disappointing. Im not opposed to IAP but this is the first game Ive bought that (unless youre really, really good) necessitates additional purchases in order to play straight through the game. You can build up your credits by replaying levels, but who wants to do that on their first play through? Ive had the point of view that twisted pixel was a company that really values their product and their users but this release doesnt jive at all with that point of view. So frustratingly disappointing to have such a great game ruined by something so unnecessary.