Just click (or press space) and get money but you only have 1 hour to get as much money as possible. If you find that the game has disappeared I haven't deleted it I would have just taken it off for an upgrade. Just wait a couple of hours and I'll put it back up
The balls are 'money per second' upgrades. The things that move the balls like racquets and bats are 'money per click' upgrades. Sprites are all from the scratch library except for the tennis ball which I made myself and the bat, hand and racquet are from the internet I forgot to check the source
