In the first stage you can get 99 lives by going to the two secret areas over 
and over. First you need to run through and get all the collectables and free 
men than go to the area above the camera and get the bonus area than run 
through and get everything again. Then go to the area that you have to crawl 
through and get the collectables and get the free man by running and jumping 
where the portal shows up than run and jump again above the moon thare you 
will find another portal but only go thare after you have gone through the level at
least once than everything will be replaced.

Hit pause and then press and hold r1 then enter the following codes for the 
desired effect.
Infinite Lives - up, circle, triangle, down, right, square, down.
Fire Balls - X, up, right, up, right, right.
Ice Balls - circle, circle, left, down, circle, up, right.
Electricity - right, left, right, circle, triangle, right, circle, down, right.
Super Jump - X, circle, up, up, down, right, right.
INVINCIBILTY - X, square, down, down, up, down, right.

PASSWORDS:
Cemetery-
SVZFKHGP
BXRFYHGP
ZVTCYHGP

Toonville-
RVTCSHGP
XVVBRHKP

Jungle-
KXVKRHKP
CVHCSHKP
SVKLPHKP
CVBLPHKP

Kung Fu Land-
YTCHPHKP
ZTDHPHKP
DXVGRHKP
PZYPRXYL (All levels complete!!!)

Rezopolis-
GYVYRHKP

In the first level go to just past the first chopy thingy where there is a skinny 
tunnel. Go through that tunnel and you will find a warp. Go through that warp 
and then go all the way to the other side of stage (all the way) then, pause the 
game and put in this code while holding the R1 button: X, circle, up, up, down, 
right, right. that will give you super jump. Then (if you went all the way to the 
other side) you should be on a raised platform. Jump off that raised platform 
and as far to the left as you can. You will be pulled into an invisible warp. 
In this room you will find like 5-6 warp holes. In each of these holes there is 
a bonus Stage. This might be all of the bonus stages.