==CODES==

-Stage Select-
At the title screen, press Down, Select, Select, X, Y, Select, Select, L, R, Select, Select, Left, 
Right, Up and then:
 
A for Stage 2 
B for Stage 3 
X for Stage 4 
Y for Stage 5


==SECRETS==

-Sound Test-
At the title screen, hold L + R + B