I will show you how to put a tackshooter inside a moon hole.
Guide to Put a Tackshooter Inside Moon Hole
Start your game.
Choose the right map (very important).
Step three (you almost there)
Make a little defense and loose sum lifes.
This is very important. Get tackshooter as an insta monk. It must have 0 upgrades! Choose the same hole as me and spam the left button on your mouse (this might take few minutes).
Step five (final step)
You did it!