This project uses the IRremote library.

this is the type of laser gun it is to be used with:
https://www.amazon.com/d/Pretend-Play-Toys/DYNASTY-TOYS-Laser-Carrying-Multiplayer/B01137DEEW

i know the code is bloated but it works, and it works well.
 
the IR led shold be on pin 3

i have NOT tested heath-related leds due to my lack of NPNs

it ONLY works at close range so far