DF6F-14DF Start with 1 life
D96F-14DF Start with 5 lives
FD6F-14DF Start with 10 lives
496F-14DF Start with 25 lives
9D6F-14DF Start with 50 lives
BB6F-14DF Start with 99 lives
DFC0-CFAF Continue with 1 life
D9C0-CFAF Continue with 5 lives
FDC0-CFAF Continue with 10 lives
49C0-CFAF Continue with 25 lives
9DC0-CFAF Continue with 50 lives
BBC0-CFAF Continue with 99 lives
DD34-37D7 Infinite lives--except football level
DDC0-3F07 Infinite lives--football level
DD6D-47D0 Start with no continues on normal level--handicap
D56D-47D0 Start with 7 continues on normal level
DB6D-47D0 Start with 9 continues on normal level
DD6D-4700 Start with no continues on challenge level
D96D-4700 Start with 5 continues on challenge level
D56D-4700 Start with 7 continues on challenge level
DB6D-4700 Start with 9 continues on challenge level
DFCD-4FAF Start with 1 heart on Children or Normal difficulty levels--Don't pick 
challenge level
D0CD-4FAF Start with 4 hearts on Children or Normal difficulty levels, 2 on Challenge
D9CD-4FAF Start with 5 hearts on Children or Normal difficulty levels, 3 on Challenge
3CE9-448A Infinite health (when hit, a fake empty heart appears)
D184-C4A1 5 heart maximum on challenge level
C927-47AD Dash meter doesn't go down
D46B-CFAF 1-up gives 2 free guys--not on mystery weight challenge level, or 
if you get 1-up by collecting stars
D43E-C48E Small star worth 2 stars
D93E-C48E Small star worth 5 stars
FD3E-C48E Small star worth 10 stars
DF64-14AA Gold Gogo Dodo Trophy(tm) lasts 1/2 as long
D064-14AA Gold Gogo Dodo Trophy lasts 2x as long
C9CE-1F0F Choose bonus level after completing a level
7036-C001 Passwords work on any difficulty level (not just Children level)