I can understand the frustration by being prompted for a subscription service fee just to enjoy a game, however in the description of this game as well as all the other Crunchyroll games, they note that a mega or ultimate fan subscription is required to play. They are not hiding it in any way. So far it’s great! I’m enjoying the style of puzzle solving adventure it is offering.

Had to setup account and still wasn’t able to play the game without a subscription

Had to create an account and then accept premium to continue to even get to the game. Scam app.