Aztec Adventure is a decent game, and since I spent a lot of time playing it as a kid, it also has a special place in my heart. I was never able to finish it, though, as it gets quite hard once you get to level 5 or 6. (There are 10 levels in this game, so it's quite a long game.) And the bosses get more and more difficult, which is quite normal I guess. Unless that here there are several bosses on each stage. When I was a kid I thought that it was pretty cool that you could get helpers, but most of the time they're really not that helpful. And they get killed pretty fast. What really is helpful, are the ponds (or whatever they are), that can give you full life if you are willing to sacrifice a money bag (and if you're not willing to do that, you're a moron). I wonder who that woman who shows up then is. I guess I haven't really bothered to find out what this game is all about... I guess I better read the box text... Maybe she is some Aztec god? Anyway - good game, great music, and plenty of fun.
Level select
Press UP five times before the Nazca '88 scroll opens on the title screen. Press RIGHT three times while Nino tosses money at the other characters, and then LEFT while all characters are walking toward the left side of the screen. Nino's face will appear next to the Nazca '88 scroll to confirm correct code entry. Use the D-pad to change the level numbers appearing below the face to change which level you will start on.
Sound test
Start the game, and at the starting screen with the rainbow, press LEFT and then RIGHT twenty times. Nino's face will appear to the right of the rainbow to confirm correct code entry. Use the D-pad to change the numbers appearing above the face to select a sound, then press BUTTON1. To resume game play, select sound 00 and press BUTTON1 or BUTTON2.