Tyrian boss: Surface rock-arch guns

Surface rock-arch guns is the descriptive name this wiki gives to a boss of Tyrian that has no known official name, fought in 1 level: Surface (episode 4).

Fights

Each fight lists the parts the game tracks with the boss health bar. Pictures link to each part's card in the bestiary; armor is at Normal difficulty.

Surface (episode 4 — group 1 of 2)

Picture: its biggest part.

2 parts, armor 6, 20 at Normal difficulty.

Parts (2)

Surface (episode 4 — group 2 of 2)

Picture: parts placed as the level spawns them.

2 parts, armor 6, 20 at Normal difficulty.

Parts (2)

Name and sources

No source names these boss groups; Fandom's Surface page lists no boss and mentions guns mounted on rock arches, which matches the two parts (a gun and a rock arch). Descriptive name.

Technical names

Parts as named for modders: volcanic_ruins_01, spike_fortress_23. Sprite banks: Volcanic ruins, Spike fortress.