Unidus

Thing type 123, Unidus, is an enemy based on the Orbinaut from Sonic 1. It is used in Red Volcano Zone. Five damaging spikeballs circle around it. If the Unidus spots a player, it will periodically throw spikeballs at them. The spikeballs do not regenerate, so after throwing all five of them, the Unidus is without protection and can be destroyed safely.

Unidus are typically placed with a Z position of 32 fracunits above the ground. However, if placed directly on the ground, the Unidus spawns 4 fracunits above the ground by default.

States – MT_UNIDUS
State	Sprite prefix	Frame	Duration (tics)	Action	Var 1	Var 2	Next state	Full brightness?	Translucency
S_UNIDUS_STND	UNID	A	4	A_Look	0	0	S_UNIDUS_STND	No	0%
S_UNIDUS_RUN	UNID	A	1	A_Chase	0	0	S_UNIDUS_RUN	No	0%

States – MT_UNIBALL
State	Sprite prefix	Frame	Duration (tics)	Action	Var 1	Var 2	Next state	Full brightness?	Translucency
S_UNIDUS_BALL	UNID	B	1	A_UnidusBall	1	0	S_UNIDUS_BALL	No	0%

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