Burrower

A special type of creep that goes underground although it can easaly be hit by certain towers and isnt too resistant, it is forced to occasionally pop above the surface to breathe, the amount of time it needs to stay up or go underground will depend on its level and map conditions (on average it will have 50 hp at lowest level and 2500+ at its highest) it will also need to pop up if on a bridge and stays above ground until it detects solid ground it gives 5 credits a kill, (+5 for every level)