Level select:


Press B, A, Left, Right, B,

A, Start at the title screen.



Invincibility:


Press Up on controllers one and two.  Enter KJTTJK

as a password.  Alternatively, press Up + A + B

on controllers one and two to display the password screen.



Full weapons:


Press Up on controllers one and two.  Enter CKWJT4

as a password. Alternatively, press Up + A + B

on controllers one and two to display the password screen.



Two extra continues:


Press Up on controllers one and two.  Enter J8SCL9

as a password. Alternatively, press Up + A + B

on controllers one and two to display the password screen.



Unlimited continues:


Press Up on controllers one and two. 


Alternatively, press Up + A + B

on controllers one and two to display the password screen.



Expert mode:


Press Up on controllers one and two.  Enter KCHDR4

as a password. Alternatively, press Up + A + B

on controllers one and two to display the password screen.



Possessor 1:


Press Up on controllers one and two.  Enter FPNFR7

as a password. Alternatively, press Up + A + B

on controllers one and two to display the password screen.



Possessor 2:


Press Up on controllers one and two.  Enter 9KY3FG

as a password. Alternatively, press Up + A + B

on controllers one and two to display the password screen.



Level skip:


Press Up on controllers one and two.  Enter GDXK4F

as a password. Alternatively, press Up + A + B

on controllers one and two to display the password screen.