click and drag the planks to complete the broken bridge-also i don't no why but sometimes for me everything comes out at once...like all the planks aren't supposed to show at once. if that happens then just press the green flag again and it's alright. This is an ok...i dont no whether to call it a simulation or game so ile but both-a simugame. Aaaanyways it's ok but the ending is funny-little twist.