The best mod you can find for Sigmally - Agar.io: Macros, Friends, tag system (minimap, chat), color mod, custom skins, AutoRespawn, save names, themes and more!
Hm, browser extensions seemed to flip off Dev mode, sorry for not diagnosing before reviewing.
Loaded up Sigmally today and script isn't working. It's acknowledging on Tampermonkey that the website is using the script, but it's not working.