You don't need any experience to play meatballs. Find a monster with a higher level than yourself and let the baby start collecting skills, so you can collect meatballs. Generally speaking, if you have a high level, it is not recommended to do the collection task, which is not cost-effective. If you want to experience, you can take part in running or magic tower task (both activities are open on Sunday) and want badges. Usually, Monty basically reaches level 35, so you can play three times on weekends and gain experience by defending the existing badges.