Hollow Heart
Overview
| Item | Details |
|---|---|
| English Name | Hollow Heart |
| Chinese Name | 空虚之心 |
| Category | Durability passive / evolution material |
| Unlock | Survive 1:00 with any character |
| Priority | S |
| Max Rank | 5 |
Effect and Rank Progression
Hollow Heart increases Max HP multiplicatively by 20% per rank. Unlike most passives that add flat bonuses, the multiplicative scaling means later ranks give increasingly larger raw HP gains.
| Rank | Multiplier | Max HP Increase (cumulative) |
|---|---|---|
| 1 | ×1.20 | +20% |
| 2 | ×1.44 | +44% |
| 3 | ×1.73 | +73% |
| 4 | ×2.07 | +107% |
| 5 | ×2.49 | +149% (max) |
Note: Gaining a rank does not automatically restore HP to the new maximum — use Pummarola or recovery items to actually fill the larger HP bar.
Evolution Weapons
| Weapon | Evolves Into | Notes |
|---|---|---|
| Whip | Bloody Tear | Base game |
| Pako Battiliar | Mazo Familiar | DLC weapon |
| Metal Claw | Big Fuzzy Fist | DLC weapon (Weapon Power-Up also required) |
| Vanitas Whip | Aurablaster Tip | DLC weapon |
| Mace | Stamazza | DLC weapon |
Spawn Locations
Appears as a stage item on the following maps:
- Mad Forest
- Moongolow
- Boss Rash
Usage Notes
Hollow Heart is one of the game's top-tier passives — it simultaneously provides a massive HP cushion and serves as the Whip evolution material. In any Whip build, it's a mandatory pickup.
The multiplicative scaling is especially effective on high-HP characters like Antonio (base 120 HP). Combined with Arcana VI Sarabande of Healing, a large Max HP acts both as a recovery ceiling and as a damage source — the recovery-damage scales with amount healed, which scales with Max HP.
Remember that rank-ups don't auto-fill the HP bar. Pair with Pummarola or Floor Chicken pickups to actually benefit from the expanded maximum.
Build Synergies
| Combination | Reason |
|---|---|
| Pummarola | HP regen turns the bigger HP bar into effective sustain |
| VI Sarabande of Healing | Higher Max HP = more recovery, and recovery itself deals damage |
| Whip / Bloody Tear | Mandatory evolution material |
| Antonio | +149% on base 120 HP creates exceptional durability |
FAQ
Q: Why doesn't my HP refill after picking up Hollow Heart?
A: Hollow Heart only raises the Max HP ceiling — it doesn't restore current HP. Pummarola or healing items are needed to reach the new maximum.
Q: What rank does Hollow Heart need to be for Bloody Tear?
A: Rank 1 is sufficient. Max out Whip to level 8, hold Hollow Heart at any rank, and open an elite chest after 10:00.