This CLASSIC shooter is more popular than Call of Duty

I have been practicing a consistent deathless run on Contra for the NES, but I made some careless mistakes in this run, but I am going to continue to work. I remember when I used to have to use the Konami (Contra) code to complete this game. Sit back and enjoy a smooth Contra run.
Hardware:
Console: Analogue NT Mini Noir
Controller: 8Bitdo N30 2.4G Wireless Gamepad