ROUND1 Japan announced that it will hold an Ensemble Stars!! and ROUND1 collaboration from 4 November through 7 February 2027. Collaboration menu items, novelty items and merchandise will be offered, along with initiatives linked to facilities including bowling and Spo-cha.
The campaign will be available at ROUND1 locations nationwide, with multiple initiatives linked to facilities including bowling, karaoke, billiards, darts and Spo-cha. Participating facilities vary by location.
Collaboration menu items will be sold at 93 locations with karaoke facilities, and customers ordering eligible menu items will receive limited collaboration novelty items. Locations without karaoke facilities are excluded.
Collaboration packages will be sold at 98 bowling locations and 55 Spo-cha locations, with customers receiving limited collaboration novelty items. From 8 January through 7 February, bowling alleys will host a Moonlight Strike Game, and bowling score display monitors will also feature collaboration-themed visuals.
At 55 Spo-cha locations, customers can take part in a stamp rally by collecting digital stamps on their smartphones. Those who collect all the stamps will receive a smartphone wallpaper featuring the collaboration's key visual. Original merchandise will be sold at 10 locations nationwide, with sales also planned through online retailers such as AMNIBUS after the campaign ends.
Trading products are limited to 1 box of each type per transaction, while open products are limited to 2 of each type per transaction. These limits may be changed or lifted depending on sales conditions. A social media campaign will also be held.