Ultrapool Cocktail Bar: How Mixing Balls Works
The three rules
The cocktail bar sits to the left of the shop and unlocks on the Pineapple Malibu difficulty. Ask the bartender to mix two of your balls and you get one ball back. Three rules govern what comes out:
- Scores add. A 6-score ball mixed with a 4-score ball produces a 10-score ball.
- Effects both apply, in order from left to right. The mixed ball does the left ball’s effect first, then the right ball’s. Ordering matters whenever one effect sets up the other.
- Levels average. Mixing a level 1 with a level 2 gives a level 2 — the average, rounded in your favour. Mixing two level 1s gives a level 1.
Rule 3 is the one players lose money to. Fusing a heavily upgraded ball into a level 1 does not preserve the upgrade; it drags it down toward the average. Upgrade after you mix, not before.
Why the ordering rule matters
“Both effects, left to right” is not decoration. Consider two effects where one creates a condition the other consumes:
- A ball that plants flowers fused with a ball that cashes flowers in wants the planter on the left, so the flowers exist by the time the second half fires.
- A ball that spawns a copy fused with a ball that buffs every ball wants the spawner first, so the new body is on the table to receive the buff.
- A ball that transforms something fused with a ball that pays out on transforms wants the transformer first.
When both halves are independent — two flat scorers, two unrelated triggers — the order changes nothing and you can ignore it.
What mixing is actually for
Saving board space. Your table has a fixed number of slots, and every ball you own has to be pocketed to do anything. Two half-useful balls occupying two slots is worse than one ball doing both jobs in one slot, especially on Pineapple Malibu where you have one fewer shot per round.
Rescuing a dead Legendary. Overflow Ball is enormous inside a number build and blank outside
one. Fusing it into a ball that actually does something turns a dead slot into a large-score body
with a live effect.
Getting a set’s payoff into a different set’s engine. The bar is the second cross-set tool after the snack bar. If you are running Spooky and the shop offers you the Friends ball that pays +3 on every transform, mixing it into one of your transformers makes the pairing permanent.
Pairings worth the money
These follow from the effect text rather than from any published list — check the ball database if you want to build your own.
| Left ball | Right ball | Why |
|---|---|---|
Chicken (spawns an egg) | Scrambled Eggs is a snack, so pair with Nest instead | The spawner creates the bodies the second half feeds. |
Window (+1 all balls) | Sand (scores every buff received) | The buff source fires first, and Sand is on the table to receive it. |
Mirror Ball (copies your front ball) | any strong pocket effect | The copy arrives, then the effect fires on a fuller table. |
Dandelion (plants flowers) | Sunflower (cashes flowers) | Plant then harvest, in one slot, in one pocket. |
Machine (spawns scrap) | Recycler (upgrades scrap) | The Tech loop compressed into a single ball. |
| Any number ball | 8 Ball or Overflow Ball | Number balls combine by design; fusing consolidates the pile. |
What not to mix
Do not mix two multiplier balls. Multiplier effects are already the strongest thing you own, and fusing two of them halves the number of slots delivering multiplier without making each one bigger.
Do not mix your only body. Effects that trigger on “pocket another ball” need another ball to exist. Compressing your board too far leaves the trigger with nothing to fire on.
Do not mix upward into a level 1. Averaging levels means every fusion with a fresh purchase costs you progress on the upgraded half.
Where it fits in a run
The bar opens at the same time the game takes a shot away from you, and that is not a coincidence: fewer shots means each shot must do more, and a fused ball does two things per pocket. If you are climbing the ladder set by set, Pineapple Malibu is where boards stop being collections and start being machines. The build guide covers the six loops that fusion is usually compressing.
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