Chester Cheetah . . . Wild, Wild Quest.

 No.  Code  Effect
   1  AA6T-AAFY  Infinite lives--EXCEPT RALLY LEVEL
   2  AA5A-AABG  Start with 0 continues
   3  AY5A-AABG  Start with 5 continues
   4  BE5A-AABG  Start with 9 continues
   5  AWBT-CA8R  Infinite continues
   6  ABAA-AAAE  Infinite time
   7  ABAA-AABG  Infinite time and infinite lives--EXCEPT RALLY LEVEL
   8  A1VT-CAFR  Small paws worth about 5 instead of 1
   9  CDVT-CAFR  Small paws worth about 10
 10  A5WA-CAA4  Medium paws worth about 6 instead of 3
 11  B9WA-CAA4  Medium paws worth about 15
 12  CXWA-CAEG  Big paws worth about 20 instead of 10
 13  D5WA-CAEG  Big paws worth about 30
 14  AE5A-AADG  Start each level with the map piece
 15  AG2A-AAER  Infinite cheese puffs on pickup--EXCEPT RALLY LEVEL
 16  AJ6A-AABT + AE6A-AABY  Begin every level with 1 life
 17  AJ6A-AABT + AJ6A-AABY  Begin every level with 2 lives
 18  AJ6A-AABT + AY6A-AABY    Begin every level with 5 lives
 19  AJ6A-AABT + A66A-AABY  Begin every level with 7 lives
 20  AJ6A-AABT + BE6A-AABY  Begin every level with 9 lives