Quick answer

Choose the Hyokokko Collection blind box if you want the lowest-cost entry into Slime figures and plan to buy six at once for a full box. Choose the MEGA CAT PROJECT Nyan Piece blind box if you prefer One Piece characters in a larger, roughly 70mm cat-style figure and do not mind paying more per box.

Price per box and what it buys you

The Hyokokko box is listed at USD 6.39 against a USD 9.00 comparison price, while the Nyan Piece box is USD 9.15 against USD 15.00. That gap matters most when you are buying several boxes: six Hyokokko boxes cost less than six Nyan Piece boxes, so the Slime set is the easier way to build a full box on a budget.

The Nyan Piece price buys a figure listed at approximately 70mm. The Hyokokko listing does not state a figure size, so if exact dimensions matter to your shelf or display case, treat that as an unknown rather than assuming it matches the cat line.

Full-set buying: same rule, different math

Both products use the same ordering logic: each box contains one randomly selected figure, and ordering six units gets you a full box set. Neither listing names the individual characters in the assortment, so you cannot choose a specific character from either one at checkout.

Because the Hyokokko box costs less, completing its six-box set is the cheaper commitment. The Nyan Piece set costs more overall, which is reasonable only if the One Piece cat styling is what you actually want on display.

Series appeal is the real tiebreaker

The Hyokokko Collection draws on That Time I Got Reincarnated as a Slime, while Nyan Piece Nyan!! turns One Piece characters into beckoning-cat figures. If you already collect one series, matching it keeps your shelf coherent; buying the other series only for the lower price usually leads to figures you display less.

Trade-offs to weigh before you buy

  • Lower price vs known size: The Hyokokko box is cheaper per unit, but its listing does not state a figure size; the Nyan Piece box costs more and states approximately 70mm. If display dimensions are non-negotiable, the Nyan Piece listing gives you a number to work with.
  • Full-set cost: Six Hyokokko boxes cost less than six Nyan Piece boxes, so the Slime set is the lower-cost way to complete a full box.
  • Character control: Both are random per box and neither listing names the assortment characters, so ordering six is the only supplied way to get a full set rather than a chosen character. Do not buy either expecting to pick a specific character from a single box.

Product facts at a glance

Which blind box fits you?

Best for

  • Slime fans who want the lowest-cost path to a full six-box set
  • Buyers testing blind boxes for the first time with a single low-priced box

Not for

  • Shoppers who need a stated figure size before buying
  • One Piece collectors who want cat-style characters rather than Slime figures