Hey guys! This video was a lot of fun to make! Here are the exact rules and mains used if you wanted to do this too:
There are 2 mains of each type excluding Sprout (Sprout is almost entirely support based and doesn't really have much potential for a royale like this) and they're working together to be the last main group standing. So that would be:
-2 Pebbles working together
-2 Astros working together
-2 Vees working together
-2 Shellys working together
You can either try to sabotage the other teams or chill, but you have to be doing machines like you normally would. You can also try to form alliances, but there's no guarantee that someone in your alliance from an opposite team won't betray you. You also have to separate your alliance after you're the final 2 teams left. Lastly, if you kill or try to kill your teammate (Your actual teammate, killing your alliancemates is allowed) the server will target you until you die. That's all! If you decide to do this, have fun!