This games is fucking EPIC!!! It's the best trap defense game I've ever played! I played it from 1:00 pm to 9:30 pm! EPIC!!! But the best thing to do is have 3 or more sets of corrosive blasters. Upgrade the ones fully that are closest to your Doom Chest. Heavy Stompers aren't really worth getting until you upgrade them, and the Explosive Bridges will come in handy. With catapults, Im suggest they are your first priority. When they appear on the minimap, destroy them immediately! They WILL cause massive damage to your doom chest.