Runebreaker Colossi — 4 Animated Fantasy Bosses

Four fantasy bosses for your next 2D project

A mushroom-covered toad, an armored siege scarab, a masked spectral caster and a lightning crocodile — each with idle, walk/hover, attack, hurt, death and specialty animations.

What you get

• 124 transparent PNG frames and 24 horizontal sprite sheets.
• 768 × 512 pixels per frame, with consistent canvas alignment. Upright artwork generally occupies 250–350 pixels of that height.
• Per boss: idle (4 frames), walk/hover (6), attack (6), hurt (3), death (6) and specialty (6).
• JSON frame rectangles, timings, loop settings and anchor coordinates.
• An offline HTML animation viewer with pause, frame stepping, replay, speed controls and four background colors.
• 24 animated WebP previews, 4 GIF overviews, editable raster PNG source poses and a Python rebuild script.

Meet the colossi

• Bramblemaw Toad — mushroom growths, an expanding throat and a tongue strike.
• Sunscarab Siege Queen — molten armor, a claw strike and glowing shell effects.
• Hollow Crown Seraph — a masked spectral caster with floating runes.
• Tempestjaw Leviathan — an armored lightning crocodile with bite and breath attacks.

Before you buy

AI-assisted artwork: the illustrations were generated with AI assistance, then extracted, refined and aligned. These are short 3–6-pose raster animations with some drawing and shading variation between poses. Please inspect the animated previews before purchase.

Effects are baked into the action frames. No skeletal rigs, layered PSD/vector files, SCML, Spine files, 3D models or native engine packages are included. The HTML preview was tested; native Unity/Godot imports and mobile devices were not tested. Standard PNG and JSON files can be adapted to your engine.

Use in personal and commercial projects under the included license. Standalone redistribution of the asset collection is not permitted. Promotional scenery is presentation artwork, not a playable level or environment kit.

v1.0.1 release notes — September 13, 2026

Corrected source slicing to preserve complete attack poses and effects; replaced overlapping attack artwork; matched body scale across actions; refined transparency and removed source debris. Rebuilt all 124 PNG frames and 24 sheets, added per-frame timings and explicit one-shot behavior, and updated the viewer and documentation.

Verification: four-background visual review, desktop browser playback, transparent margins, exact sheet-to-frame correspondence, ZIP integrity and clean extraction/rebuild. The earlier v1.0.0 archive is retained locally; v1.0.1 is the first version offered here.