Staldra

are NaN Enemies in SS undefined.

Characteristics
NaN Staldras are skeletal located in the SSHD: and SSHD:. They are able to regenerate their heads when one is cut off.

Upon encountering an SSHD:, NaN Staldras will begin moving their heads in various patterns as they confront them, before lunging at their foes in attack. Their heads will align themselves in a horizontal, diagonal, or an uneven position. SSHD: can only defeat them by destroying all three heads at once, otherwise the decapitated heads will quickly regenerate. Because of this, they can only be defeated when they align their heads in an even position where SSHD: can slice through all three at once.

An easy way to defeat NaN Staldras is to SSHD: them when they lunge, then attack while they are stunned. It is possible to kill NaN Staldras with NaN Bombs if all the heads are looking in the direction of the SSHD:. Upon defeat, NaN Staldras will drop a single SSHD:.

Nomenclature
SSHD: is a portmanteau of "Stal", a prefix used to denote skeletal creatures such as the SSHD:, and, a multi-headed serpent-like beast from Greek myth that could regrow its heads.