You might remember that Contra was one of the myriad games that the famous Konami Code works on.

So you might logically deduce that the code works on its sequel, Super C as well.

So you go to the title screen

and put in the code

Up, Up, Down, Down, Left, Right, Left, Right, B, A, Start

And nothing happens. It turns out that the famous code doesn't actually do anything in this game.

But!

While you're at the title screen you could press instead

Right, Left, Down, Up, A, B, Start

Then you'd have 10 lives to work with instead of 3

Which isn't as helpful as 30, but I'll take what I can get.

Also, if you have two players, you might want to hit Select before you hit Start. That way you both can benefit.