Aero the Acrobat
Contributed by - Richard

Five Continues:
On the screen that shows aero flying, quickly press X, Y, B, A, X, A,
B, Y, Up and the L Button. 

Nine Continues:
On the screen that shows aero flying, quickly press X, Y, B, A, X, A,
B, Y, Up and the R Button. 

Level select:
Press Down, A, Down, Y, Down, A, Down, Y on the options screen. A
sound will confirm correct code entry. Begin game play on the first
level. Press Start to pause the game when Aero appears. Press Up, X,
Down, B, Left, Y, Right, A, L, R. A sound will confirm correct code
entry. After game play is resumed, press Start to pause, then press
Select. Then hold R while the bonus points are calculated at the end
of any level. 

Cheat Menu:
Enable the "Level select" code. Press L, R, X, B, Left, Up, Right,
Down, Y, A at the level select screen. Additional options will appear
on the level select menu. Enter the following codes to enable the
corresponding options on this menu:
No enemy collision
Press Down, A, Y, R, Y, B, Up, L, Y, A at the full level select menu.
The "No enemy collision" option may now be selected. 
Infinite stars
Press A, Y, L, Up, Down, R, A, Y, Right, Left at the full level select
menu. The "Infinite Stars" option may now be selected.