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This article, Runt Ball Rasengan, contains content taken directly from our mother site. All credit of such content is reserved the original authors over at Narutopedia, the original article can be read here: "Runt Ball Rasengan".
The user creates a miniature-sized Rasengan through limited supplies of chakra. The full effect of the technique is unknown as Naruto collapsed before using it.
Trivia[]
This technique was first introduced in one of the episodes of Rock Lee's Springtime of Youth Full Power Ninja Chronicles.
This is the first Rock Lee's Springtime of Youth Full Power Ninja Chronicles technique to be taken out of and be shown in Naruto.