This has been one of the best games I've played from WJ4. The idea that it happens inside of a computer reminds me of System Defender from Club Penguin.
The mechanic that the robot places the towers for you is pretty neat, but also makes it quite hard as you can't just place 99% of your towers at the beginning of the track.
I finished the game with 1 life :D
Is where the robot will place the tower random or somehow chosen?
Played it again and finished the game with 8 HP, I guess the strategy is to place the components as fast as possible and using as many robot upgrades as possible. :)