Super Mario Run has proved to be a success for Nintendo as people rushed to download the game once it was released on Thursday. However, complaints are now flooding in from users that the game is eating up too much data on their iPhones. Some users are reporting that the game chews through 40-60MB per hour of gameplay, this is fine if you are on wi-fi, but if you’re using a data plan this can really hurt. Even the tutorial can eat large chunks of data. Nintendo says that the game is always online to help prevent piracy.