Yo-Yo Ma
Yo-Yo Ma (ヨーヨーマッ) is a stand featured in Part VI: Stone Ocean.
Appearance/Personality
Yo-Yo Ma is an automatic stand that appears as a rotund midget with a German-style military helmet. He is indestructible, and will even relish his pain in a masochistic fashion. He seems to have a fixation with eating things and can often be seen drooling excessively. When he is assigned a target by his user, he will follow them and assist in any way possible. This is to make the target drop their guard.
Abilities
His ability is triggered when it has the target one-on-one. He will secretly attack the enemy with his acidic saliva, having multiple ways to attack such as inserting it into the bodies of biting mosquitoes and mixing it with water in front of a moving boat to cause it to splash those on-board. Seemingly indestructible one-on-one, the only safe tactic is to run. If the victim is unable to figure out its method of attack then they'll probably end up dead. The only known method of defeating Yo-Yo Ma is to kill its user.
Synopsis
After Jolyne Cujoh, Narciso Anasui and F.F. escape from the maximum punishment ward, Yo-Yo Ma appears suddenly and swallows the sphere containing the still-forming Green Baby. The three escapees use their stands to pummel Yo-Yo Ma into the ground, but are unable to retrieve it. Even Diver Down proves ineffective, as Anasui can "feel" the enemy stand's stench through his own. Yo-Yo Ma suddenly starts acting overly-friendly - creating a chair out of branches for Jolyne to sit on, offering her a comic book, cleaning her shoes and catching a bee that flew too close. Unable to do anything about the enemy stand, Anasui and Jolyne take it with them as they flee by motorboat and leave F.F. to find and kill its user. Before parting with her, however, Yo-Yo Ma makes sure to melt part of her face with its acidic saliva while the other two aren't looking.
When the pursuing prison guards almost discover Anasui and Jolyne's motorboat hiding in the marsh, Yo-Yo Ma helps them to camouflage themselves and the boat to look like water rushes. Unfortunately they are found anyway and, while Jolyne's attention is focused on the guards, Yo-Yo Ma releasea a mouthful of mosquitoes containing its acidic spit. Shortly after, Anasui punches him off the boat and into the guards as a distraction. After commandeering the guards' motorboat and resuming their escape, Jolyne comes to realize that she is unable to speak due to the large holes in her tongue and correctly assumes they are the result of the enemy stand's attack. After Yo-Yo Ma attacks her a second time, incapacitating her, Anasui finally realizes that the enemy stand is not friendly at all. However, his attempts to discern Yo-Yo Ma's method of attack only result in him receiving the same sort of injuries as Jolyne. Ultimately, he ends up implanting a frog in Yo-Yo Ma's head and connecting its brain to the target sensor - thus causing the stand to act and think like a frog. Yo-Yo Ma then becomes unable to fulfill its intended function or even to keep its concentration for any longer than a few seconds. Only when F.F. kills D&G does Yo-Yo Ma implode and blow away as dust.
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