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Mouse-Controlled Death Ray

Instructions:

1) Press "Home" to turn on the mouse guiding
2) Press "Del" to turn on the generator and charge the laser
3) Afer the generator is at full power, press "End" to annihilate your foes

Pretty much everything here is frozen, indestructible and has disabled collision, so there's no chance of accidentally destroying it.

No mods required!

Also, this is my first contraption here, so I'd appreciate some Constructive Criticism™.