Once you load in to the dropper, in the front there's a sign that says, "Hint: There is a hole in the purple balloon!" If you go through that hole, there will be a blue balloon under and you have to land in the water that's in the middle. Then, go to the pink balloon. There's another sign that says, "See the hole in the house below?" For me it's very hard to land in the whole, I've tried multiple timed and yet I still haven't made it. But, now you know pretty much how to do it.