This is a browser game and can be played on itch.io.

https://peru-co.itch.io/yjsk-00re

This is an endurance shooting game (Shoot ’Em Up) based on the first chapter of the first volume of The Saga of Tanya the Evil (幼女戦記) comic book. There are rankings of playing time and number of shot downs. Aim for more solid war results and earn the Silver Wings Assault Medal!

Translated with www.DeepL.com/Translator (free version)