Grand Slam in Burnsville now has an indoor trampoline room. A fun way to burn off some energy for people of all ages, our X-treme Trampoline is the newest addition to our list of awesome activities. Make it the highlight of your next party or just stop in with some friends! Dodgeballs are also available for anyone that wants to add a little competitive spirit to their jumping experience. Drop by and check out the best indoor trampoline in the Minneapolis and St. Paul area!