Hearts are the main health system.
Each heart has its own HP value and when this reaches 0, they are destroyed (exception being Survivor Heart).
There are many different heart types with many different effects. The order of hearts can be moved around via clicking.
Upon running out of hearts, you die.
The regeneration speed of hearts can be increased with Vitality stat ups. Vitality class items can also boost the health, defense, and some other aspects of hearts.
Heart types[]
| Number | Name | Icon | HP | Effect |
|---|---|---|---|---|
| H01 | Lesser |  |
20 | No special effects, always start with 3. |
| H02 | Regen |  |
20 | Regens HP 3 times as fast. |
| H03 | Survivor |  |
20 | Can survive a lethal hit with 0 HP. |
| H04 | Jumbo |  |
40 | No special effects. |
| H05 | Tough |  |
20 | +4 defense. |
| H06 | Undying |  |
10 | +Revive |
| H07 | Hourglass |  |
60 | Doesn't heal |
| H08 | Spike |  |
20 | Shoots spikes in all directions when hit. |
| H09 | Bleeding |  |
20 | Shoots daggers when hit that make bosses bleed |
| H10 | Magician |  |
20 | Shoots homing magic bolts when hit |
| H11 | Rocket |  |
20 | Rains down missiles near the cursor when you take damage. |
| H12 | Lightning |  |
20 | Rains down lightning near the cursor when you take damage. |
| H13 | Scaley |  |
20 | +Dexterity when health is low |
| H14 | Beast |  |
25 | +5 hp from boss phases |
| H15 | Rubber |  |
20 | 50% chance bullet bounce back |
| H16 | Jello |  |
20 | +Damage redirection to other hearts, 67% chance |