Click the green flag to start. Use your mouse to aim at the bin. Hold space and then release, the longer you hold space, the more power you gain. Click the retry button (top left corner) to get another attempt if you fail. Currently there are 8 levels, all of them are possible! The first level is harder than it looks! By the way, specific people get to cheat! Add a comment if you want to be one of these people.
I had a snowball fight, and suddenly I thought, 'That Mr-Mathematical paper toss - I could do a snowball one!' So here it is!