Akai Katana" is a side-scrolling shooting game released in 2010 in arcades. A port was later made in Japan for more advanced hardware under the name of "Akai Katana Shin", and thanks to the 16:9 screen ratio, the game became even more intuitive. Finally, Cave made a third edition, "Zetsu Akai Katana", in which the quality of life and the game's balance got revised. Each game will require different tactics, so prepare yourself.