Kids Birthday Party. Girl in wonderwoman costume high-fives instructor and friends

Oak Creek Kids Birthday Parties

Contact Us

oakcreek@ultimateninjas.com

(414) 307-4411

400 West Bell Court #350,
Oak Creek, WI, 53154

PARTY LIKE A NINJA!

Fun For Everyone

Kids love Ultimate Ninjas birthday parties! If you're looking for a fun, active, energy filled idea for your kids birthday party you've come to the right place! At Oak Creek Ultimate Ninjas your ninja party guests, both young and old, can take full advantage of our many obstacle courses, ninja challenges, and equipment! Our COVID19 safety measures ensure you and your guests can enjoy your party safely, and stress free at your Ultimate Ninja kids event!

Easy Planning

At your Oak Creek Ultimate Ninjas Party service, we take the hassle out of your kids party planning! No cooking, setup, or clean-up necessary. Just show up and have a blast!

Private

Spacious Indoor obstacle courses, a private party room, and personalized party package are all yours.

What's Included In Your Oak Creek Party Package?

Choose Your Package

premiere Party Package

$295

First 10 Guests

2 hour private kids party

80 minutes of private course access followed by 40 minutes in your own private party room for celebration

Access to all of our obstacles, climbing wall, Curved walls, and dodge ball court

Private party room including plates, napkins, cups, utensils, and water.

Birthday child receive a Free Ultimate Ninjas T-shirt!

Set-up, clean-up, and everything in between is handled by Ultimate Ninjas staff.

Optional add-on pizza 

Birthday Child receives free trial class at Ultimate Ninjas OR 1 free hour of open play

+$20 per child more than 10
Book Now

ultimate Party Package

$395

First 18 Guests

2 hour private kids party

Access to all of our obstacles, climbing wall, Curved walls, and dodge ball court

80 minutes of private course access followed by 40 minutes in your own private party room for celebration

Private party room including plates, napkins, cups, utensils, and water.

Birthday child receive a Free Ultimate Ninjas T-shirt!

Birthday Child receives free trial class at Ultimate Ninjas OR 1 free hour of open play

Set-up, clean-up, and everything in between is handled by Ultimate Ninjas staff.

Optional add-on pizza

+$20 per child more than 18
Book Now

LOOKING FOR A CHALLENGE?

Upgrade to our Pro Party to take the Ultimate Ninja Challenge!

Ninja vs. Ninja, Timed Course Runs, Obstacle Specific Challenges, Ultimate Ninjas Leaderboard Challenges
Team Building, Motivating, and Rewarding Activities
Obstacle challenges and structure tailored to your ninja skills and size
Combine it with our Ninja Bracelets Giveaway as the kids Beat. That. Wall! Just $5 for your whole party!
Recommended for ages 7+
Kids Birthday Party North Shore

LOOKING FOR A CHALLENGE?

Add the challenge package option to your kids party at no additional cost!

Ninja vs. Ninja, Timed Course Runs, Obstacle Specific Challenges, Ultimate Ninjas Leaderboard Challenges
Team Building, Motivating, and Rewarding Activities.
Obstacle challenges and structure tailored to your ninja skills and size
Combine it with our Ninja Bracelets Giveaway as the kids Beat. That. Wall! Just $5 for your whole party!
Recommended for ages 7+
Kids Birthday Party North Shore

would you like a tour of our party facilities?

(414) 307-4411

Get The  Party started!

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evite logo

We have partnered with Evite to make your party planning a breeze with free, custom Ultimate Ninjas Party invitations!

They're perfect for birthdays, fundraisers, end-of-year team parties, and more!

Get Started Now
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Party FAQ Kids Party Answers

Party FAQ Kids Party Answers
North Shore FAQ


Does Ultimate Ninjas have an age limit for parties?
While there are not any age restrictions during birthday parties, we do recommend that the birthday child be turning at least 5. Please call us to discuss options for younger birthday celebrants! Only guests ages 4-17 are included toward the final headcount.


Is the Guest of Honor included in the headcount?
The birthday celebrant is not included towards the total count, nor are children under 4 and adults 18 and over. Parental supervision is required for guests under the age of 4.


Can adults participate too?
Yes! Anyone entering the course will need an Ultimate Ninjas waiver on file.  If you have signed one for your child, you have signed one for yourself by default.  For example: if Mom completed a waiver for the kids, Dad will still need to complete a separate waiver and select the ‘just me’ option should he choose to enter the course.


When do I need to inform Ultimate Ninjas of my headcount?
If you are below 40 participants, there is no need! Additional attendees above the standard party package can be added up to the start-time as there is no need to be exact with this count prior to the party.  We will simply take a headcount as we check-in your group and will adjust accordingly prior to the end of the party. If you are planning on having more than 40 participants, please reach out to us at stl@ultimateninjas.com


Can I bring my own food?
  • Entrée for participants is required to be ordered through Ultimate Ninjas. Pizza should be ordered no less than 48 hours in advance.  We do make exceptions for outside catering due to allergies or extenuating circumstances, but you will have to make arrangements for delivery.  As a rule of thumb, a large pizza ordered through Ultimate Ninjas feeds roughly 4-6 children depending on age at 2 slices per. Our vendor is Jets Pizza.
  • We do allow any outside food that isn’t considered a main entrée. Fruit and veggie trays, other snacks, and desserts are among popular foods brought in.  We have cake knives and lighters, but please bring candles.
  • Honest Kids juice boxes are free of charge with an order of 3 or more pizzas. We also have water coolers in the party rooms should you need additional hydration free of charge.  Plates, napkins, utensils, and cups are also provided free of charge.


Can I bring decorations?
Yes! You are more than welcome to bring your own decorations. Our party rooms are blue and green. Each party room has a total of 4 party tables and seats 40 kids maximum.


What is the cancellation/reschedule policy?
Your $100 deposit can be transferred to another date provided its more than 30 days out. Any change or cancellation within 30 days would result in loss of deposit. Please call to discuss any extenuating circumstances that would cause a problem with your party date within 30 days.


Do you have a parking lot?
Yes! We have a strip of 50 parking sports directly in front of the gym. Extra parking spots are found directly in front of Hi-NRG


Are there any other activities going on during my party?
If you are booking the Premiere or Ultimate Party Package then there are no other activities going on during your party! Those two party packages include a semi-private event where your party will be out enjoying the obstacles together, but another party could be going on utilizing the other side of the course. During the Open Play Party Package it will be open to the public, so other people can be out on the course playing on the obstacles at the same time as your party guests. If you are interested in an entire facility rental, please call us at (636) 206-8550 or email us at stl@ultimateninjas.com
What Our Customers Are Saying About Us!
We just threw my daughter's 6th birthday party here and it was wonderful! They were very helpful and accommodating. Our guests had a great time and the staff assigned to help our party could not have been nicer. I would recommend this for a party venue (or just a fun open play/class activity) to anyone!Hannah B.
My kids absolutely love this gym! We just had my oldest's birthday party there and it was fabulous! All the kids had a great time and the employees were awesome with them! It was nice rotating through the sections of the gym where it was just our party and the kids were able to continuously do the obstacles.Amy J.