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Birthday Parties


MCG offers a legendary birthday experience!  Choose between a ninja warrior or a gymnastics-themed birthday party.  Each party has exclusive access to the gym and all its equipment, a massive bounce house, and two of our fabulous coaches.  If you have a favorite instructor, just let us know and we will try to get them to run the party!

We offer our birthday parties on Saturday afternoons.  Please call us at (406) 221-2424 to schedule a party!



We charge $300 for members and $350 for non-members for parties up to 16 kids.  We can charge another $75 to bring an additional six children if needed. 

Coaches always appreciate tips!

*Once booked, birthday parties are non-refundable. 

What to bring

We are happy to provide paper products, such as plates and napkins, and plastic silverware.  We also blow up some balloons in the birthday child's favorite color!  If you would like to bring your own paper products, utensils, tablecloths, or balloons, you are more than welcome to.

The birthday parties are incredibly fun, and the kids will get a great workout.  Please bring water for the kids, or encourage parents to send their kids with water bottles.


  • 90 minutes of exclusive gym space

  • A huge bounce house

  • 2 dedicated coaches

  • Games, relays, and/or obstacle course

  • Gymnastics or ninja warrior fun throughout the gym

  • A prize for the birthday child

  • A digital personalized invitation

  • Paper products

Parent Guidelines

Parents are encouraged to observe the birthday party from our seating area.  Anyone on the floor must have an account and a signed waiver, take off their shoes, and stay with the birthday party.  Parents are NOT PERMITTED on any of the equipment (bars, beams, trampolines, ropes, warp wall, bounce house, etc.).


All birthday parties take place on Saturday afternoons.  Please call us at (406) 221-2424 to inquire about times.


Appropriate clothing choices include leotards, leggings, shorts, and a t-shirt.  Children should have their hair tied back.  We ask that nobody sport a midriff as it can be a hazard while spotting.


All parents and children attending the party MUST have an account in our customer portal with a signed waiver.

A link to our customer portal is included with the digital invitations, or parents can access it by visiting our website's home page.  Please encourage parents to create an account prior to the day of the party.

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