Preliminary Peril (波乱の天下一武道会, Haran no Tenka-ichi Budokai) is the twelfth episode of the Piccolo Jr. Saga and the one hundred thirty-fourth episode in the Dragon Ball series. The episode first aired on November 16, 1988.
Goku and Tien Shinhan agree to keep it a secret that King Piccolo's spawn is at the World Martial Arts Tournament. A Young beautiful woman (Chi-Chi), who also entered the tournament, tapped on Goku's shoulder with a smile but Goku does not recognize her at first, enraging her. She walks away without telling Goku who she is. Her appearance also distresses Krillin, who is now under the impression that Goku did no training in the past three years and was instead hanging around with women. A masked guy (Yajirobe), is also at the tournament, sneaking around, trying to avoid Goku. Chiaotzu rigs the numbers, so that none of the friends have to fight each other in the preliminaries.
Goku is up first, which attracts the attention of all his friends, the mysterious girl (Chi-Chi) and Piccolo, to see his increased strength. He is fighting King Chappa again, just like the last tournament. Chappa prepares to fight, but Goku simply stands, seemingly unprepared, intimidating Chappa. The boys notice that Goku's mind is completely cleared. Even Chappa feels Goku to be in control and charges forward, but Goku moves so fast that Chappa can't see him and defeats Chappa with only one tiny chop. This does not surprise Goku's friends and Piccolo.
Mysterious girl (Chi-Chi) is a very strong fighter, as is masked guy (Yajirobe). All of the protagonists win their fights except Chiaotzu. He appears to have been beaten by Mercenary Tao who was presumed to be dead, shocking both Tien, Goku and also Chiaotzu before he was defeated. Goku explain his encounter with Tao to the others while Tao explains his resurrection. Over the years Tao has become the first functioning cyborg assassin, with a great expenditure in order to live, and he seeks vengeance against Goku and Tien.
- This episode picked up where "Changes" had left off.
- King Chappa said that he fought Tambourine and survived, when he was really killed by Tambourine and was brought back by the Dragon Balls. It is possible that he just assumed that he had survived the fight.
- This is the second episode to have the title "Preliminary Peril", the first being in the Tien Shinhan Saga. It is also notable that King Chappa appears in both of these episodes.
- Chiaotzu breaks the fourth wall when all the heroes are saying "This is great! None of us have to fight each other!" (which was because Chiaotzu changed it to be that way), as he gives the "V" of the "Victory Sign" to the audience.
- This the second time the draw number is rigged in the preliminary match and also the second time done by Chiaotzu
- This is the first episode where Chi-Chi is now older and has a different outfit.
- For the FUNimation dub, Cynthia Cranz replaces Laura Bailey as the voice of Chi-Chi, who is now all-grown up.
- In the Blue Water dub this episode is titled The Tournament Begins.