Check the three conditions
| Condition | Required state | Common mix-up |
|---|---|---|
| Character | Yatta Cavallo selected for this run | Another character carrying Cherry Bomb does not trigger Cavallo’s normal morph. |
| Relic | Chaos Rosalia collected and its effect enabled | This is a permanent relic, not a passive selected during each run. |
| Level | Cavallo reaches level 80 | The number is the character’s run level, not Cherry Bomb’s eight-level upgrade cap. |
The official patch notes describe the transformation at character level 80. They do not specify a max-level Cherry Bomb plus passive-and-chest recipe. Our common evolution chart covers that other pattern.
Unlock and select Yatta Cavallo
Defeat a cumulative total of 3,000 Lion Heads, then purchase Cavallo in character selection. Lion Heads appear in Inlaid Library. Cavallo begins with Cherry Bomb, which makes him the direct character choice for this route.
The historical gameplay image below identifies Cavallo’s small panda-like form. It shows the character before the large morph and does not document a level-80 trigger or a current-version completion test.
Find Chaos Rosalia in Astral Stair
- Unlock Astral Stair by reaching level 80 in Inverse Inlaid Library. Normal Library and Inverse Library are different settings for this objective.
- Enter Astral Stair and explore its connected rooms through the doors. Obtain the stage map if you need a clearer view of the room layout.
- Locate the Chaos Rosalia relic using its map position and green directional arrow, then walk over the relic to collect it.
- Return to character selection and start a Cavallo run with the relic effect enabled.
Old-layout reference. The June 2023 walkthrough describes the upper side-door route in the starting corridor, passing through successive rooms to the right. The very end door loops to the opposite end of the corridor. Source descriptions disagree about compass directions, so use the relic icon and arrow when your layout differs. This guide does not claim a freshly tested door-by-door route for every current edition.
Reach level 80 and identify the result
Gain experience as Cavallo until his run level reaches 80. With Chaos Rosalia active, Cavallo morphs and Cherry Bomb becomes Yatta Daikarin. The evolved weapon continues throwing bombs and adds constellation-like explosions around the character.
Collecting the relic persists between runs. The character’s run levels and weapon upgrades belong to the current run, so the permanent relic unlock should not be read as a promise that every future character starts with the evolved weapon.
If Cherry Bomb will not evolve
| Your current state | Next check |
|---|---|
| Cherry Bomb is level 8 and chests keep giving upgrades | Check Cavallo, Chaos Rosalia and character level 80. The morph is automatic when its conditions are met. |
| Character level 80, but you are using someone else | Start the normal morph route as Yatta Cavallo. |
| Cavallo reached 80 but the relic is missing | Collect Chaos Rosalia. Owning the weapon or unlocking Astral Stair does not award the relic. |
| Relic owned but Cavallo stays unchanged | Inspect Collection for a seal on Chaos Rosalia. Unseal it before retrying the run. |
| You found Chaos Malachite instead | That relic belongs to Mortaccio’s morph. Cavallo needs Chaos Rosalia. |
The player thread linked below records the same confusion about waiting for a chest. The official patch notes also describe random GoldFinger rewards that can include an anima weapon. Those rewards are separate from the repeatable Cavallo route explained here.
Sources & verification
- poncle · official Patch 1.5.0 ↗ (external website, opens in a new tab) — Astral Stair unlock, Chaos Rosalia, level-80 Cavallo morph and evolved weapon. Original release notes checked 10 November 2026.
- Prima Games · June 2023 relic walkthrough ↗ (external website, opens in a new tab) — Historical door layout, map and morph route. Compass descriptions are not generalized to every edition.
- Wiki · Yatta Cavallo ↗ (external website, opens in a new tab) — Lion Head requirement and morph, indexed text reviewed. Direct Wiki fetch restricted.
- Wiki mirror · Seal ↗ (external website, opens in a new tab) — Sealing Chaos Rosalia disables the corresponding level-80 morph.
- Player question · Cherry Bomb evolution ↗ (external website, opens in a new tab) — First-hand confusion about chests and the character-specific transformation. Individual report, not our gameplay test.