Background and Worldview: A mysterious scroll from the ninja village was torn to pieces by shadow clones, scattered across five training grounds. Players collect fragments by matching shuriken, scrolls, and dojo symbols to reassemble the ninjutsu scroll and learn the ultimate invisibility technique.

Core Gameplay: A countdown-based match-3 system with combo chains. Each match increases the combo count; a broken combo resets it. The higher the combo, the greater the chance of obtaining explosive kunai. “Shadow clones” interfere in levels, creating duplicate blocks.

Features: A ninjutsu upgrade tree unlocks different ninjutsu (Fire Release, Water Release) that produce different effects on the board.

Visuals and Sound Effects: Ink-wash black and red tones, bamboo shadows, and moonlight. Japanese-style taiko drums and shakuhachi, the sound of shuriken cutting through the air.

Number of Levels: 2100
Level Introduction: Levels 1-200: Leaf Training Ground, learn combo chains; Levels 201-600: Waterfall Training, water flow resets combos; Levels 601-1200: Cave Ninja Tool Storage, shadow clones appear; Levels 1201-1800: Snowfield Secret Passage, invisible blocks; Levels 1801-2100: Ninja Tower Top, scroll final assembly.