Are you trying to for this version, or were you looking for a technical fix included in the v1.2.4 update?
Где я могу поиграть в Cuphead на мобильном? Как это сделать?
If you are looking for the game, it is best to stick to official platforms to ensure the file is safe and supports the developers:
В Cuphead можно играть только на ПК или консоли. Она доступна на Mac, Windows, XBox, PS4 и выше, а также на Nintendo Switch.