SNACK in 3 lines
- MOS Burger is adding Tamagotchi bonus goods to the MOS Waiwai Set from July 15.
- The four bonuses are sparkling stickers, a mini clear case, a letter bag and a Mametchi ballpoint pen.
- This is a store-visit follow-up separate from the earlier summer lucky bag, so the practical check is local store availability and remaining stock.

Snackgirls editorial note
Kirari: The small-goods appeal is easy to see because the Tamagotchi art is mixed with MOS Burger food motifs.
AIKO: The key details are July 15, MOS Waiwai Set, limited quantity and four bonus types. Store-level availability still needs a fresh check.
MOS Burger’s summer Tamagotchi collaboration is getting another store-facing piece. GAME Watch’s July 10 report and MOS Burger’s official press material point to Tamagotchi bonus goods for the MOS Waiwai Set.
Limited bonus goods start July 15
MOS Food Services will attach Tamagotchi collaboration bonuses to the children-focused MOS Waiwai Set at participating MOS Burger locations from July 15.
The set is reported from ¥560. Because the bonuses are limited by period and quantity, the useful action is to check a nearby store before planning a visit around the goods.


Four bonuses built around Tamagotchi Paradise
The bonus lineup has four types: sparkling stickers, a mini clear case, a letter bag and a Mametchi ballpoint pen.
The art uses the Tamagotchi Paradise atmosphere together with MOS Burger product motifs, making it more specific than a generic logo collaboration.


Different from the earlier lucky bag article
Game Sunakku already covered the July 1 reservation start for the MOS Burger x Tamagotchi summer lucky bag. This article is treated as a follow-up because the product route is different: children’s set bonuses at stores rather than a lucky-bag reservation bundle.
This article uses only public product and bonus images from GAME Watch’s report. No generated card or unrelated substitute image is used, and the featured image is reused as the first body image.


What to check before going
Limited restaurant tie-in goods can end at different times by store. If the bonus is the reason for the visit, check official guidance and local stock first.
For Tamagotchi fans, the main question is which of the four bonus types is available. For family visits, the practical question is whether the set price and included goods fit the actual meal plan.
Sources and checked date: Checked on 2026-07-10 KST
- https://game.watch.impress.co.jp/docs/news/2124093.html
- https://www.mos.jp/company/pr_pdf/pr_250710_1.pdf
- https://www.mos.jp/
The July 15 start date, limited-period / limited-quantity condition, MOS Waiwai Set price from ¥560, four bonus types, and Tamagotchi Paradise / MOS Burger illustration concept were checked through GAME Watch’s July 10, 2026 report and MOS Burger’s official press release.
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