Pick a skill, then tap a wind-up to assign it — each level grants only a fixed number of each. Blocker plants a robot as a living wall so its neighbours turn back. Digger tunnels straight down through terrain. Builder lays a short diagonal brick bridge in the way it faces, handy for spanning pits. Floater pops a chute so a long drop never splats (it is permanent, so assign it before the edge). The Release slider sets how fast they pour out of the drop hatch, and Nuke clears the level early. Save at least the quota to the green exit hatch before the timer hits zero and the level unlocks the next. Best save-percentage per level is kept in this browser only. Keys: 1-4 pick a skill, R restarts.