Excellent Game
Fun game. In addition to Crazyruzz's suggestion of adding a way to tell what toy you need to progress in a mine (for easier backtracking), you should also add an indicator to tell whether or not you have completed the time trials without having to go inside. A way to do this is that when you are at the mine entrance, in addition to the toys collected, people saved, new toy collected indicators - add a blue candy collected indicator and a needs x,y,z new toy to finish icons.