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Ninja Slash is a swipe arcade. Red marks appear on the field. Drag through them to cut. Dark bombs must be left alone — cutting one ends the night. Marks that you ignore vanish and count as escapes. Five escapes or one bomb ends the run. Combos grow when you keep cutting cleanly. The pointer does the cutting even if a keyboard is attached.
Swipe or drag on the field. The pointer still does the cutting if a keyboard is connected.
Cut as many marks as you can. Five misses or one bomb ends the run.
Drop moving blocks to grow a tower.