Ultrapool Mix Achievements
Mix achievements unlock when you fuse a specific pair of balls at the cocktail bar. Here is every catalogued pair in one table — including the 'Why?' achievement (Gacha Capsule + Upgrade Ball) that players keep searching for.
How mix achievements work
The cocktail bar mixes any two balls into one fusion ball. For these achievements the pair matters: fuse the two catalogued balls and the entry unlocks. The pairs below are community-catalogued from the in-game achievement screens — the developer has not published them.
The full pair list
| Achievement | Ball 1 | Ball 2 |
|---|---|---|
| iBall | Apple | AI Brain |
| Laika | Dog | Astronaut |
| Beach Episode | Sand | Beach ball |
| Schrödingers Cat | Cat | Lich |
| They came together | Chicken | Egg |
| Payback | Witch | Frog |
| Why? | Gacha Capsule | Upgrade Ball |
| Ratatouille | Rat | Chef Hat |
| Sharknado | Shark Plush | Tornado |
| The Count | Vampire | Calculator |
| Microsoft | Window | AI Brain |
'Why?' — the one everyone searches for
The 'Why?' achievement is the community's favourite punchline: fuse a Gacha Capsule with an Upgrade Ball. The joke writes itself — an upgrade applied to a random capsule — and it is the pair players ask about most. Both balls are catalogued in the Classic set.
Planning a mix-achievement run
- The cocktail bar opens partway up the difficulty ladder (community-catalogued at the Pineapple Malibu step) — you cannot fuse in the earliest runs.
- Pairs cross sets (e.g. Chicken + Egg, Witch + Frog), and the shop favours your chosen set — so plan which pairs you are chasing before you pick the run's set.
- You need both balls alive at the same time: buy the cheaper one early and keep it until the partner shows up.
- Fusion results beyond the achievement are not published — treat the fused ball itself as a bonus, not the goal.
FAQ
Common questions about this topic.
How do I get the 'Why?' achievement in Ultrapool?
Community-catalogued: fuse a Gacha Capsule with an Upgrade Ball at the cocktail bar.
Which balls unlock mix achievements?
The catalogued pairs include Apple + AI Brain (iBall), Dog + Astronaut (Laika), Sand + Beach ball (Beach Episode), Cat + Lich, Chicken + Egg, Witch + Frog, Gacha Capsule + Upgrade Ball, Rat + Chef Hat, Shark Plush + Tornado, Vampire + Calculator and Window + AI Brain.
When does the cocktail bar unlock?
Community-catalogued: at the Pineapple Malibu difficulty step. The exact unlock rules are not officially published — see the difficulties page.
Do the fused balls do something special?
Not documented. The achievements confirm the pairs; what the fusion results do is covered by the fusion guide's combo theory.