Desolo Awakened

Desolo's two chambers want 8U/s for 30 seconds. The engine resource is Zinc - Sphalerite is native to Desolo (and Sylva), so smelt a unit before you descend. It's the smallest planet and by far the quickest core run in the game, which also makes it the sensible one to do in co-op for 771888104. Zinc into the platform, triptych across to the opposite slot, awakened.