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Summer Birthday Parties
Special summer birthdays with a splash!
Let’s make this summer unforgettable with a celebration at Funplex! Our party packages offer an array of exciting activities, from arcade games and bowling to go-karts, indoor thrill rides, and a refreshing waterpark. Dive into the details of our summer packages, explore private suite upgrades, and check out our enticing party add-ons.
Summer Birthday Parties have wrapped up for the season! They’ll return May 2026, right after Labor Day weekend.
💦 $100 OFF Weekday Parties
Make weekdays the best days! Get $100 OFF when you book a Splashplex or Summer Ultimate Party on a weekday at The Funplex in East Hanover this July or August. Summer fun, big savings, only for a limited time!
What's Included
Here's how we party!
Funplex parties are easy for you and unforgettable for your birthday child!
- You’ll have a dedicated party host for two hours who will manage the flow of your event and guide your guests through the attractions and activities. Your guests will do the attractions first, then enjoy pizza and cupcakes, then they will go to the arcade.
- Your party includes a reserved table in open seating or a private room (depending on the package selected).
- Paper party supplies are provided so you don’t have to bring anything unless you want a specific theme.
- Each child will receive pizza, a drink, and a vanilla cupcake. For adults, you can order from our discounted catering menu.
- FREE birthday child! Your guest of honor is free and does not count towards the 10 children included in our packages.
*Fall Party Offer is automatically applied to your Ultimate and VIP Ultimate Party Packages.
Party Packages
Choose the party that's right for you!
Splashplex Party $550
Time
3 Hours on Weekdays & Weekends
What's Included
Includes up to 10 Children
Plus FREE Birthday Child
Includes Splashplex Park Admission for Each Child
Unlimited use of the Splashplex Waterpark for Each Child
1 Slice of Pizza, One 16oz Drink, and a Vanilla Cupcake for Each Child
Reserved table in a shared space
Park Admission for 2 Party Parents Plus 8 Additional Adults
Extra Guests
Additional Child
$38
Additional Adult
$20
Includes Splashplex Access. *Does not include food or drinks.
Splashplex Birthday Party
$550 +tax
Summer Ultimate Party $900
Time
3 Hours
What's Included
Includes up to 10 Children
Plus FREE Birthday Child
Includes Park Admission, Unlimited Indoor Rides & Attractions and Splashplex Waterpark for Each Child
$10 Fun Card for Each Child
2 Slices of Pizza, One 16oz Drink, and a Vanilla Cupcake for Each Child
Private Room for the First Two Hours
Park Admission for 2 Party Parents Plus 8 Additional Adults
Unlimited Use of Splashplex Waterpark after the Indoor Party
Extra Guests
Additional Child
$55
Additional Adult
$29
Includes Indoor Admission and Splashplex Access. *Does not include food or drinks.
Summer Ultimate Party
$900 +tax
Pick 3 Party
Time
2.5 Hours
What's Included
Includes up to 10 Children
Plus FREE Birthday Child
Includes Park Admission and 3 Indoor Rides & Attractions for Each Child
$5 Fun Card for Each Child
1 Slices of Pizza, One 16oz Drink, and a Vanilla Cupcake for Each Child
Reserved Table in a Shared Space
Park Admission for 2 Party Parents
Extra Guests
Additional Child
$33
Additional Adult
$15
Includes indoor park admission *Does not include food or drinks.
Pick 3 Party
$375 +tax
For information on private room availability, please contact our Party Office at (973) 428-1166 or email thomas@thefunplex.com.
Party Rooms & Spaces
We have several party spaces for any size party, from an open shared room to the ultimate experience in our VIP Bowling Suite.
Picnic Pavillion
Main Shared Party Room
Suite 1
Suite 2
Suite 3
VIP Suite
VIP Bowling Suite
Laser Lounge
Cabanas
Upgrades & Add-ons
Take your party to the next level and enhance the entire experience!
Big FUN Upgrades
Arcade Card
$25 each
Let the fun begin! Give your guests the opportunity to enjoy their favorite arcade games with our arcade credit add-on.
Birthday Cup
$5 each
Make your child’s birthday party extra special with our reusable Funplex themed cups. These durable cups add a festive touch and are perfect for serving drinks.
Balloon Bundle
$30
Celebrate in style with a colorful balloon bundle, featuring the birthday child’s age.
Standard GLOW
$50
Includes glow balloons, glow beaded necklaces, glow foam batons, glow bracelets and glow knobby balls for up to 10 children and one birthday child. Additional children just $5 each!
Only available in a private room
Premium GLOW
$100
Includes everything that’s in the Standard Glow Package, PLUS glow glasses, glow spinners, glow spiky bracelets, glow sticky hands, additional glow balloons and a glow birthday sign for up to 10 children and one birthday child. Additional children just $10 each!
Only available in a private room
Food Upgrades
Pizza Bundle
Two large cheese pizzas, one french fry platter and two pitchers of juice or soda.
Wingplex Special
30 buffalo wings with a choice of a large cheese pizza or one french fry platter and three pitchers of juice or soda.
Light & Fit
20 pinwheel wraps with your choice of meats & cheese, your choice of a half tray garden salad or Caesar salad and two pitchers of juice or soda.
FAQs
Book a Party
There's two ways to get your party started!
I'm Ready!
Book Online
If you already know your package, your space, and of course, your date, then you can book online right now and lock in your party.
I have questions
Contact Us
We’re happy to walk you through the packages and upgrades and help you curate the perfect birthday party.
