NN555Merge

NN555Merge is a short-term memory maze game that turns every round into a small mental challenge. Each run shows you a complete maze, a start point and an exit for a few seconds. Then the walls fade away, and only your marker, the path you have walked and the special markers stay visible. You move cell by cell, remembering the turns you saw, until you reach the exit.

What you get:

- Sixty levels and more across five rule chapters
- Beginner, intermediate and advanced boards from 5x5 to 9x9
- A daily maze that changes every day
- Gentle hidden-walls mechanic with soft fading, no flashing
- Swipe controls and on-screen direction buttons
- Buffered movement so quick inputs are handled in order
- Wall-hit tolerance system with brief wall reveals
- Look Again: view the whole board once for two seconds
- Undo your last step once
- Reverse Hint: reveal the remaining route from the exit back
- Checkpoint markers you must collect before the exit
- Dual-exit boards where you judge the shorter route
- Shifting walls that open and close over time
- Pause with a hidden board, ready prompt after resuming
- Failure review showing your path and where you hit walls
- Completion replay comparing your trail to the shortest path
- Star ratings, personal bests and no-collision badges
- Chapter progress and a scores and badges page
- Local progress that stays on your device, no account needed

The game is a single-player offline puzzle for personal entertainment. It does not collect, upload or share any personal data, does not require a network connection to play, and does not make any claim about measuring or improving memory ability.

Every element of play comes from the real maze on screen. What you memorize is what you move through, and every record you earn is based on your actual route.