• ✓Idea (from "match the parts to the built thing") — but you actually build it
• ✓The plan sits above; the dashed empty spaces wait below
• ✓A piece only goes home when BOTH its shape and its colour are right
• ✓Two deliberate near-misses in the tray: right shape wrong colour, right colour wrong shape
• ✓A wrong piece is answered in words: "this space wants the green triangle"
• ✓A tray piece is drawn from the same path as the plan's, so comparing them is comparing one picture
• ✓Houses and towers take turns, and the towers grow a block at a time
• ✓Big targets, no timer, a hint button, and a breathing pause after a run of misses
• ✓Add a free-build mode where a child designs their own tower and keeps itplanned

✓ = done · ☐ = planned. Every game is built one step at a time like this.