MacLife writes: "As in the classic game, if you die--and you will often--you restart that level. You'll gain extra health throughout the game, but if you exit the app or get a phone call, you'll lose all of that progress. (You can start on any level but without health upgrades.) Did the development team consider mobile players? The app won't reorient the screen in case you want to play with the headphone port on top, but that's unlikely, since you can't listen to music in the background".