It's a super short demo that's super cute. It makes really happy that this anime has a fan game. I really appreciate the effort put into animations. Chito and Yuuri could've easily just instantly entered the Kettenkrad. Instead, Chito sits up on the side and slides into the driver's seat. It's a small touch, but it's adorable. I also like how you have to drive the Kettengrad onto the lift and then press the button. Once again, it's such a tiny detail, but it's the tiny things that make games wonderful. I think a longer experience could be super enjoyable, but this is still great.