the glitch by fayt998 doesn't work. If you buy and resell to the same market each time you lose a bit of money, the price is inversely related to the quantity your sell. good try though
i found a bug. if your using a laptop, close the screen while the spawn in walking, lol you'll see, they go nowhere really but the towers keep shooting
 "Create-A-Juice"){kind=icon}
 "Caravaneer"){kind=icon}
 "Whiteboard Tower Defense"){kind=icon}