press the green flag to go to main menu, you save progress. bottom left are towers. to buy a tower click on it (don't hold) and then drag it. E or Q to upgrade towers. F to sell towers. click on tower and press A to activate ability (if you have one) click on tower and hold W to see how much damage it has done (not really accurate) In sandbox mode use the number keys to choose rounds. to choose higher rounds hold Q W E and then press the number keys. M to spawn test enemy.
