Last spring, I watched a room of six-year-olds rebuild the same tower for an hour. They did not want a faster launcher; they wanted the satisfying beat of tension, aim, and release. The pause made every collapse feel earned.
Make the pause part of the play
That rhythm is our best interface lesson. Give the hand a clear grip, let the system show its arc, then leave just enough uncertainty for the player to lean forward. At Fling Club, every bright button is an invitation to try again.