J'ai aussi ce problème sur mon tel, voici ce que Sega America m'a répondu:
"Hello Sophia,
Not all Android devices are compatible yet. We are working on updating our compatibility list, but this can be a lengthy process as different Android devices have different hardware. Be sure to check the store periodically to see if your devices has been added to the compatibility.
Regards,
Eugene
Sega of America
Customer Support"
En gros, va falloir attendre pour pouvoir y jouer. 