Press 1 to place a dart monkey tower where your mouse is. Press space to start the round. As of now, we dont have any upgrades or other towers. Also, we could always use some more mebers so, if you would like to become an offcial member of the BTD S team, send me an email at astroobly.abl@gmail.com. (This is not my private email) I notice there is a bug where you can place towers on the track and in water. I also know about the bug where sometimes when you place a tower it place two of them. If you wish to help please conatct the above email.