A shadow ninja dashes across rooftops and you tap to slash enemies before they reach your position. Chain rapid slashes for a combo multiplier and dodge thrown shurikens by swiping away. Boss ninjas appear every fifth wave and require three precise hits to defeat. The city never sleeps and neither do the enemies.

Crystals blaze into view across the screen and you tap them to collect before they blink out. Blue crystals are common, purple are rare, and the legendary rainbow gem appears once per run and is worth more than your entire score. The field floods with gems as your collection grows — keep tapping or miss them forever.

Numbers pop up across the screen and you tap them in ascending order as fast as possible. Simple at first — brutal by round five. Each correct tap shrinks the window for the next, and skipping a number sends the whole sequence back to zero. A pure test of numerical pattern recognition under mounting pressure.