3 ninjas Wiki

The practice dummy was a prop used by Mori to train his grandsons. The dummy's eyes light up and a bell rings when struck with sufficient force in the neck, armpits, heart or balls. All three boys are acquainted with the last target as they clutch their own, wince, and moan in sympathy when Mori points here. Tum Tum is not ashamed to shoot for the nuts and begins to kick this target repeatedly.