Before you look at this guide be sure to know what the 20th Force Glitch is and how to do it.

This guide's purpose is to show the second application of the 20th Force Glitch other than creating new borgs. You are actually able to change the properties of your borgs in various ways. The simple application of this glitch is to simply change the color of the borg, but you can do much more with this glitch.

This specific guide will be to change your normal Beam Gunner borg that you obtained from the normal 20th Force glitch into a GATLING Beam Gunner.

1. With your newly created Beam Gunner, you place it in slot 1 of Force 4, 5, 7, and 8. Alternatively, you can make an equally good mutant borg, the Billy Beam Gunner, by placing your Beam Gunner in slot 1 of Force 2, 3, 4, 7, 9, and 11. (IMPORTANT NOTE: These specific orders are only able to work on a New Game of Gotcha Force. It is completely RNG whether these combinations will work on any other save)

2. Like the normal glitch, place G-Red in slot 23 and the Revolver Gunman in slot 15 of the 20th Force.

3. Pick up the invisible borg and place it on top of your Beam Gunner and press b.

4. Pick up the borg in slot 24 and place it in slot 16. (NOT SLOT 15) Press b.

5. Pick up the invisible borg and place it on the slot where the Beam Gunner was located and press b.

6. Empty out all your Forces and BEHOLD! You now have a completely over powered borg at your disposal.

For more information look at the wiki page http://gotchaforce.wikia.com/wiki/20th_Force_Glitch

and the forum on this topic http://gotchaforcefan.proboards.com/thread/3817/collection-knowledge-20th-force-glitch.

If you want to be able to make your own custom mutant borgs, you can use the GF calculator http://gotchaforce.wikia.com/wiki/GF_Calculator