A game for I phone using iOS

it's a game, intended for all ages. I want to use the touch screen capabilities, a pizza will be thrown at the screen and it will slide down from the top covering the screen with the pizzas sauce and toppings the player will have to wipe away this mess, they will be timed and on completion of the 1st cleaned screen another will be thrown until the clock runs out and each screen cleaned will give the player points that they have to accumulate, there is 3 levels each level a diffrent chef and a diffrent cuisine, each level lasts 1 minute and at the end of the 3 levels points will be accumulated from all 3 levels to reveal a hi medium or low trophy award, depending on how many points were accumulated.