Quickdraw
Wait for the signal, then react. Five rounds reward a fast average without false starts.
Nine ways to train attention.
Each game isolates a different kind of decision. Sessions are short, scores share a 0–2000 scale, and first-time instructions stay separate from active play.
Spot the Shift
Find the one color that differs as the grid grows and the contrast narrows.
Sudoku
Three increasingly demanding boards: two 5×5 rounds, then a classic 9×9 final.
Heartline
Switch between tip direction and motion direction according to the heart's color.
Word Tides
Build real English words from a changing prefix across three timed rounds.
Sequence Circuit
Repeat an ordered signal as its length rises from three to fourteen steps.
Shape Turner
Identify the same three-dimensional block structure after rotation—not reflection.
Number Trail
Connect adjacent numbers and operators to reach a target along a valid arithmetic route.
Warehouse Logic
Plan ahead to push every crate onto a target without trapping it against a wall or corner.