I think it would be really fun to add modifiers into the main lobby. My friends and I spend a lot of time goofing off in the main lobby and I was always think it would be fun to be able to turn on modifiers. It would make sense to unlock this after you complete the parkour so that you can’t abuse insulation to get through it till you’ve proven you can make it.
It would just be really fun to fight with improved weapons, webs and even enemies.