Blue Laser

Blue Laser is the sixth and last Defense in ScrapTD and costs 200 bricks to unlock.

Strategical use
This defense gave a big help against ground enemies and was usually combined with Double Pain. Now it's not that useful anymore. Place some in the edges to be able to defeat Mobile Delivery, but not too much, it's ok if you take some damage from MD, Tesla Tower will remove them instantly.

Overall use
It's not a bad ground barrel, it's only useful if the adversary decides to send you consistent Mobile Delivery to try and get some HP out of you, but runs into a similar problem with Shooting Box when it comes down to the potency of the defence overall against stronger Barrels.

Although it's not the worst defence in the game and isn't really just as dogwater than Airstrike overall, but falls off when Christmas and above gets sent out. This defence used to be good before Tesla Tower got added to the game because MDs were the only thing to worry about in this game back then.

Trivia

 * It cannot defeat Mobile Delivery when either Mobile Delivery is too high or Blue Laser is too low.