For once, cleaning is good.
Well basically you start off with a helicopter (used to go from high places to lower places without getting hurt) then after awhile you get a toothbrush and scrub every thing, and so on and so forth. Later on in the story you find one of the biggest secrets in the family.... but I'm not gonna spoil it for ya.
To level up here you need to get HP (happy points) and the more HP you get the better, at the end of the day (which can be 5, 10, or 15 mins) you count up how many HP you have and for every level you go up, you get longer battery life. You also get this cool blaster that you can use to blow up those nasty robots. But you'll just have to find out by getting the game.
So all and all, cleaning, for once, has saved the world from total chaos.