Sources:
https://maps.app.goo.gl/dagjPMvNquCo79ms6 ららぽーとTOKYO-BAY, 2 Chome-1-1 Hamacho, Funabashi, Chiba 273-8530, Japan
Unfortunately can't find any pictures, but this arcade has some really decorated Ongeki cabs and (maybe?) some wall art with a height chart of all the characters.
https://maps.app.goo.gl/ytTK5u8uV45iXhL88 タイトーステーション 新宿南口ゲームワールド店 3 Chome-35-8 Shinjuku, Shinjuku City, Tokyo 160-0022, Japan