Cheat mode: Press Black/White after the game begins to enter
the status screen. Press Game Select to get a blinking
pointer over the symbols at the bottom. Press Up to change
the currently highlighted symbol, as follows. Highlight the first
symbol and press Up(7). Highlight the third symbol and
press Up(7). Highlight
the fifth symbol and press Up(9).
Highlight the ninth symbol and press Up(9). Press Game
Select to accept the code. You should now start at the final
level with all weapons and a full energy/oxygen bar.
