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Theme packs / Under the Sea

Under-the-sea birthday party ideas for a home party

Blue paper, a lot of fish, and no actual water in the house. That is the brief.

Check my party date$99.99 for the weekend · $250 deposit, refunded when the box comes back

The Under the Sea pack is $9 on its own, and one theme pack is already included with the Box.

The plan

Two hours of under the sea party

Food

  • Blue jelly cups with a gummy fish set into each one.
  • Goldfish crackers in a big bowl. Nothing beats them at this party.
  • Cucumber "seaweed" ribbons made with a peeler, which children will eat if they are called seaweed.

Decorations

  • Streamers hung vertically in a doorway so the kids swim through them.
  • Blue tablecloth and paper fish cut out by the birthday kid the night before.
  • A bubble machine if you have one. Fifteen dollars, does the work of a whole theme.

One thing that isn’t a screen

A fishing game with magnets and paperclips on paper fish, for the youngest guests.

What usually goes wrong

Sea themes attract water play, and water plus a living room is a bad Saturday. Keep the wet part outside or skip it entirely.

A running order that works

  1. 0:00–0:20

    Arrival

    Guests trickle in over twenty minutes. Have the on-arrival activity out and the TV showing the attract screen.

  2. 0:20–0:45

    The activity

    One thing off the screen, with a clear end. Twenty-five minutes is the ceiling.

  3. 0:45–1:00

    Cake

    Sing, cut, hand it out. Do not do this at the start; sugar first is a mistake you make once.

  4. 1:00–1:40

    The tournament

    Five games on the TV, four kids at a time, names entered once. This is the loudest and easiest forty minutes of the party.

  5. 1:40–2:00

    Wind down

    Free play on the console, party bags by the door, parents arriving. The screen keeps everyone in one room while you hand out bags.

The arcade

All 38 games, in Under the Sea colours

A theme pack is a full reskin — art and palette — over mechanics that already work. These four suit a under the sea party particularly well.

Swim Race1–4 players · 5+Fruit Catcher1–4 players · 4+Snake Battle1–4 players · 6+Quick Drop1–4 players · 4+

See all 38 games

The invitation

3 ways a under the sea invitation can look

Free with every package, and it is the same page your guests actually open — a countdown, the address, a map and a two-tap RSVP. No ads, no account, nothing to install.

How the Invite works · Every theme, side by side

Book it

Can you get a box for that Saturday?

Saturdays go first, and the box ships 2 days early so you can test it. Your invitation site is free either way, in Under the Sea colours.

Most parties

Bashcade Box

$99.99

+ $250 refundable deposit

Four arcade stations, shipped to your door. The standard home party.

  • 4 wired arcade stations
  • All 38 games + a theme pack
  • Tournament mode
  • 3-day window around the party
  • Return label already in the box
Check a date