Description[]
Most enemies and all bosses in Axiom Verge leave behind red sparkling health restoring particles when destroyed or killed. The amount left behind is equivalent to the hit points that enemy had. Each particle contains either 2 or 8 health points.
Most enemies have a 15% chance of dropping health when destroyed. Those that differ are noted in the infobox on their page.
When Trace is close, the health particles float toward him and are absorbed.
Trace's maximum health can be increased by 100 by collecting Health Nodes (these will also restore his health) or 5 Health Node Fragments. Trace starts with 200 health. By collecting all the Health Nodes and Health Node Fragments possible in the game (including those in the 5 Secret Worlds), Trace can have a total of 1600 health.
The health bar has a white interlaced pattern that is also synchronized with the BPM (Beats Per Minute) of the current music that's playing in the game. For example the track "Apocalypse" has a BPM of 120, this means the interlaced health bar will be at 120 BPM and the beat plays when the white pattern reaches the end of the health bar. This is also happens in the Oxygen meter when Trace is submerged in a liquid or the Drone's health. The low health alarm sound will play when Trace or his Drone is at 1/8 of their health (rather than a set value like 30 in most Metroid games which is better) and is also synchronized with the BPM of the Track as well and also that the waveform is a Square Wave with a note frequency of 880 Hz or the musical note is A5. This idea is probably a reference to the stickers that say: "Music is life. That's why our hearts have beats."