Convert-A-Tron

The Convert-A-Tron is a Special Agent in BTDI. On its own, it does not attack bloons, but it can add effects to tower projectiles in its range. When placed, it by default is in its Igniting Form, lighting tower projectiles like darts and tacks on fire. It can be upgraded to any of its forms it is not currently changed to for $500, those other forms being Freezing Form, Zapping Form, and Gluing Form.