Punching Machine

The Punching Machine (パンチングマシーン) is a device that is able to calculate the force and power of someone's punch

Overview
It was first seen in the 25th World Martial Arts Tournament where the machine was used to determine who the sixteen fighters in the tournament will be. It replaced the qualifying rounds used in previous tournaments, to reduce injuries before the finals.

Mr. Satan scores a 137 with his Satan Punch. As the machine could be easily broken by the Z Fighters, they decide to go easy on it: Android 18 scores 203 points (she originally scored a 774, but the staff believed it was a malfunction and told her to redo her punch), Krillin scores a 192, Goku scores 186, and Piccolo scores 210; all of them still had a difficult time in holding back enough to give off more plausible scores. Due to these unbelievable values, the supervisors believe that the machine is malfunctioning beyond repair and decide to get a new one. Vegeta, who does not agree with holding back his strength, destroys the machine, shocking them. This forces the Great Saiyaman (Gohan), Videl and the other contestants to wait for a new Punching Machine to be brought out and calibrated.

The fifteen who scored the highest in the 25th World Tournament are Goku, Vegeta, Piccolo, Krillin, Android 18, Great Saiyaman, Videl, Shin, Kibito, Yamu,Spopovich, Mighty Mask, Killa, Jewel, and Pintar. Thus, all fifteen of them qualify for the tournament. Mr. Satan, due to being the previous tournament's winner, was guaranteed a spot in the sixteen without testing his score (he only did it to show off).

Scores
Here is a table of the known scores: ==Video game appearances== In Dragon Ball Z: Buu's Fury, the goal is to hit it hard enough to qualify. A bar appears with a moving marker that determines the power of the punch. The A button has to be press to punch and stop the moving marker. To have a high score, the player has to punch when the marker is on the green part of the bar. The player may try as many times as possible to get qualified, and it is possible to also destroy the machine.

The Punching Machine appears in a mini-game in the Let's! TV Play game Dragon Ball Z × One Piece: Battle Taikan Gomu Gomu no Kamehameha.

The Punching Machine is also seen in Dragon Ball: Raging Blast. Controlling Videl, the goal is to hit the machine as many time as possible; the more times Videl hits the machine, the higher the score gets. An unlockable trophy in the game is unlocked if Videl gets the same score her father got in Dragon Ball Z, 137.