Triguardian

The Triguardian is an Polygon boss that occasionally spawns in boss rush (dunno if this thing spawns in reodes). It mimics the appearance of the Crasher Sanctuary but its drones function like the Guardian's, thus its name. In hindsight, its just a stronger Guardian.

Appearance
The Triguardian has a pink triangle base and crasher spawners on each side. It looks basically identical to the Crasher Sanctuary

Technical
The Triguardian functions like a Guardian. It spawns swarms of crashers that ram into the player. The difference this time is that theres 3 spawners. Truly fascinating. On death, it spawns 3 Guardians.