Do you remember Jimmy, the shop-window dummy in the 'Canoniac launcher' game? He used to be a shop-window dummy, but a crash test dummy career sounded much more exciting to him. He then got launched into space from a cannon, and landed on a planet where a weird alien decides to launch him back into space. Can you launch Jimmy as far as possible? The further he gets, the more money you earn and the more upgrades you can buy.
Use the mouse to aim. Hold the left mouse button until you've reached the maximum power, and then release.