the bug allows for you to have a adolfus with both nukes and triple shot, amongoose to shoot 5 feathers and more.
i wanted the glitch to not get patched but whatever.
First you want to max out a tower, then click a tower that is on the two choices then go back to the maxed out tower and but the path you want for example on adolfus i maxed out his triple shot clicked a multiple choice uprade tower then i clicked adolfus and upgraded to the side of the nukes