One Piece DeQue

The One Piece DeQue figure series were several sets issued only in Japan by Unifive during 2002 and in early 2003. It has spanned through 4 waves, 3 regular waves of about 14 figures and 2-3 secret figures each, and a special wave named ～Episode Memories～. Figures were sold at about ¥100 each.

The characteristics of this series were that figurines were only 6 cm tall and were designed to work with building block sets, for instance Lego, Bandai's Mega Bloks and the likes. Figurines had special accessories and a base. The secret figures were called Mysteries in promotional materials.

Note: DeQue was a copyright name actually used by Unifive as a global line encompassing several animated series, like One Piece and Gundam.

Series 1
The 1st series was centered around Captain Morgan Arc and Buggy Arc. It featured 14 characters and 2 secrets, child Luffy and Gaimon. It released some time in 2002.

Series 2
The 2nd series dealt with Captain Kuro Arc and Baratie Arc. It also featured 14 characters but this time with 3 secrets, Mihawk, Merry (Kaya's butler) and Fullbody. It released some time in 2002.

Series 3
The 3rd series was about Arlong Park Arc, holding again 14 characters and 2 secrets, Dr. Nako of Cocoyasi Village and Commodore Pudding Pudding. It released some time in 2002.

～Episode Memories～
This wave featured the Straw Hats as children and their mentors or loved ones through 6 sets of 2-3 characters, totalling 13 figures. They released in 2003. Each set contained two figures and a small number of additional items, and had a special name:
 * Yearning 憧れ: Luffy and Shanks. Also contained Shanks' Sabre and the Sea King Lord of the Coast.
 * Bonds 絆: Nami and Bell-mère. Also contained a flintlock rifle gun, oranges and a carry picking basket.
 * Pride 誇り: Usopp and Yasopp. Also contained Usopp's slingshot, Yasopp's flintlock handgun and an apple on a table.
 * Promise 約束: Zoro and Kuina. Also contained three Katana swords and two training equipments.
 * Oath 誓い: Sanji and Zeff. Also contained a bag, a fish and a knife.
 * Convictions 信念: Chopper and Dr. Hiriluk. Also contained Hiriluk's case, Chopper's bag, a mushroom, vials and a needle.

Limited Editions
Apart from the regular waves, Unifive had released some limited edition figures.

Pandaman
The famous Easter Egg character Pandaman was released in 2002 as a standalone.

Special Version Present - Luffy & Zoro Set
Maybe accompanying the 1st series, Unifive released a special set of 2 characters, Luffy and Zoro, that weren't sold but only used as promotional materials. It's unknown if there were other similar special sets.

Plushes
The DeQue product line also included six plushes of the six first members of the Straw Hat Pirates, released some time in late November 2002. Each plush is 17 cm tall, with the Chopper plush having a 30 cm tall variant.