i dont think there would be any but according to the beetle bro's website, its almost like making a new componant, only theres a lotta coding involved so i wouldnt try it unless you are REALLY GOOD at making componants. i am still trying to make some componants that are actualy good so its unlikely that i can make any arenas, but who knows maybe i suck lol u can give it a try, i heard its a

of a lot easier if you have a 3d model editor. (the shaping of the arena part, not the coding, coding is still very hard)