I am not sure what KI is thinking here but I have found that with the online Doodle Dug game (which I happen to be fairly good at) the reward system makes it better to give up after reaching a certain level. If I push it to go as high as I can (Level 25) the reward is somewhat useless. If however I stop and just let character die midway I get much better rewards. So here is a simple suggestion - instead of giving a reward of 3 level 3 snacks which are better sold than used, give 1 really good snack. Basically I choose quality over quantity.
