Change a three-letter word one letter at a time, passing through the VIA checkpoint before reaching TARGET, across 16 puzzles. Minimum routes take 5–9 moves, with two extra moves allowed.
Select a word with WASD and change to it with RETURN. Stars mark candidates differing from CURRENT by exactly one letter. Reaching VIA marks it complete; then reaching TARGET clears the puzzle.
Directions work on the keyboard or pad; the pad button also acts as RETURN. SPACE opens confirmation to restart this stage. NO is selected initially. Choose with A/D, confirm with RETURN, or cancel with SPACE. Play pauses during confirmation. CTRL+C returns to BASIC.
Words sit on thick tiles, with a changing letter lifting and moving into place. Light and sound mark the checkpoint, while route history records progress. Wait for animations to finish before pressing again.
CURRENT is the current word, VIA the checkpoint, TARGET the destination, PAR the minimum moves, and LEFT the remaining allowance. The last eight words of your route stay at the bottom.
