[M2-S11] Enemy sprite sheets: rover, crab, drone and black-fluid FX #82

User story

As a player, I want the robots to look like THD's real autonomous machines, so that the campus feels possessed, not invented.

Acceptance criteria

• Rover: idle 4 · drive 6 · spot + charge 4 · hit/flip/wreck 5
• Crab: idle 4 · walk 8 · rear + stab 5 · collapse 5
• Drone: hover 4 · alert/dive 3 · crash 5 · dropped screw 3
• Black-fluid leak FX 6

Design and references

Made with scripts/make_boards.py from art/sprites/boards.json: the approved hero sheet first, the pose or object photos next, the style master last; magenta key, crushed to 96 colours. See 09 – Art pipeline (including Smooth, not rubbery) and 06 – Visual direction. No text in the art, the face never visible. Machine references: the cast direction image. Frame lists approved in A14: 07 – Enemies and boss.

Dependencies

Suggested owner: Alexander (pipeline, art, scenes, deploy).

Verification

Review page under art/sprites/ shows the sheet and a looping preview at game size (hero 80 px). The Design review field on the board is set to Approved by Alexander before the sheet is exported.