When ending a game (either by losing or ending it manually) when the camera zooms in at the base, the game will sometimes freeze. The only way out is to press the "back" button on the phone twice and exit to the main menu. I will receive all items earned in this run (money, various drops, milestone rewards etc.), but the it will not affect the leaderboards, both local and online. The completed quests and milestones won't be saved, either, but will still grant rewards and I will be able to claim rewards for them again in a future run. Any abilities used during that run will not be consumed. What's suprising is that the replay of such run will be saved.