Please add a combo to make teslas more useful. They are not worth 1000 + 1000 + 2000 + 4000 + 9000 = 17,000 pixels. Maybe like pixel+tesla+tesla+tesla+bomb = every 30 seconds, swarm of bullets that stun and release mini-explosions dealing an appropriate amount of damage. Also maybe have Beam+Laser give the Beam tower infinite range. Another cool thing would be the ability to set target priorities like in BTD5. First(the one in front)|Last(the newest to enter)|Close(those closest to tower)|Strong(this one is obvious)
 "Pixel Defender")
 "Rise of Mythos")