Experience the explosive action through the demo and unlock "300 Credits" and "Alternative Sound/WayForward Mix (Contra 4)" in the full game!
Make sure to follow the Steam Community page to keep up to date of all things Contra: Operation Galuga!
https://store.steampowered.com/app/2235020/Contra_Operation_Galuga/
P.S. Don't forget to add the game to your wishlist!