All missions:
At the Press Start screen, press X, X, White, 
White, Y, Y, White, X, Y, Y, X, White.

Ruputation:
At the Press Start screen press:
Y, Y, White, X, X, White, Y, Y, Y, X, X, X.

More money:
At the Press Start screen press:
Y, X, White, Y, X, White, X, X, Y, White, X, Y.