How to beat the weekly challenge #5 in Retro tower defense solo

This weekly challenge is definetly one of the cool ones since its so smart and satisfying to watch the final enemy get cycled over and over again. Discord link for the server (giveaways will be soon since the robux to the group is still pending for like 22 days):   / discord   the tags: #retrotowerdefense #rtd how to get the cyber skin