Chouji, Shino, and Kiba beat him with the easiest of difficulties. It'll take more difficulty for Sakura to win because hitting him won't be easy; but she still wins med diff at most with Katsuyus help. Rock Lee, Neji, and Shikamaru are debatable due to the match-up. The rest lose.
Chouji is capable of using something like Jiraiyas
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where he encases himself in spiked hair [
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] - which was durable enough to
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. Hidan can't even touch Chouji like this; while on the contrary, this potentially one-shots in expansion mode. Expanded Butterfly Mode? Lol, casually leaps over tall cliffs, lands and causes
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, which should maim Hidan. With a whopping 3.5 in speed, Hidan gets
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all day if he tries to approach Chouji head on. If Hidan attempts to leap at Chouji, [
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]. Furthermore, Hidan extracts blood from little small
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... he'd have to stab Chouji's thick skin as deep as possible in order to even hope to draw blood. What a massacre this is.
Don't even feel the need to go into detail on this one. Kiba smoke bombs Hidan, Akamaru marks him with urine, and twin headed wolf one shots. Another massacre. Beast mimicry alone is enough to dance around Hidan.
Kakashi, one of the most analytical and intelligent characters in the manga, with his sharingan activated, stated it'll be impossible to avoid Shino's bug swarm [
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]. Hidan, possessing no real jutsu or proficient shunshin feats, or speed in general, has zero chance in avoiding this. Insect Globe restricts his movements completely, allowing Shino to drop a parasitic insect on him. Toast. Also, Shino always has insect bunshins to fall back on if Hidan miraculously gets even close.