- Name: Partial Multi-Size Technique (部分倍化の術, Bubun Baika no Jutsu; English TV "Partial Expansion Jutsu")
- Type: Hiden, No rank, Supplementary
- Users: Akimichi Clan
- Debut (Anime): Naruto Episode 114
- Debut (Manga): Chapter 189
Like the standard Multi-Size Technique, this jutsu expands the body, but expands parts of the body as opposed to just the stomach. Skilled clan members can alter the size of their body to a large scale with little trouble. Those with lesser skills can use the Three Colored Pills to do the same. With the larger body parts, the user's strength increases proportionally. In Part II, Choji has mastered this technique to the extent that he can use it almost instantly.