The first four codes don't give you more points--they just reduce 
the number of Kiwis needed to advance
E389-319C Each kiwi worth 2
EA89-319C Each kiwi worth 4
E889-319C Each kiwi worth 5
EB89-319C Each kiwi worth 7
6089-319C Advance to next level after getting 1 kiwi

When using "Sart on Act #, Level #" codes, you won't have any continues

4A36-1140 + 7D36-1110 + DF3F-15C0 Start on act 1, level 2
4A36-1140 + 7D36-1110 + D43F-15C0 Start on act 1, level 3
4A36-1140 + 7D36-1110 Start on act 1 bonus level
4A36-1140 + 7D36-1110 + D03F-15C0 Start on act 2, level 1
4A36-1140 + 7D36-1110 + D93F-15C0 Start on act 2, level 2
4A36-1140 + 7D36-1110 + D13F-15C0 Start on act 2, level 3
4A36-1140 + 7D36-1110 + D53F-15C0 Start on act 2 bonus level
4A36-1140 + 7D36-1110 + D63F-15C0 Start on act 3, level 1
4A36-1140 + 7D36-1110 + DB3F-15C0 Start on act 3, level 2
4A36-1140 + 7D36-1110 + DC3F-15C0 Start on act 3, level 3
4A36-1140 + 7D36-1110 + D83F-15C0 Start on act 3 bonus level
4A36-1140 + 7D36-1110 + DA3F-15C0 Start on act 4, level 1
4A36-1140 + 7D36-1110 + D23F-15C0 Start on act 4, level 2
4A36-1140 + 7D36-1110 + D33F-15C0 Start on act 4, level 3
4A36-1140 + 7D36-1110 + DE3F-15C0 Start on act 4 bonus level 
4A36-1140 + 7D36-1110 + FD3F-15C0 Start on act 5, level 1
4A36-1140 + 7D36-1110 + FF3F-15C0 Start on act 5, level 2
4A36-1140 + 7D36-1110 + F43F-15C0 Start on act 5, level 3

Don't combine the next six codes with any of the above codes

DF3F-15C0 Start with 1 continue instead of 3
D93F-15C0 Start with 5 continues
D53F-15C0 Start with 7 continues
DB3F-15C0 Start with 9 continues
743F-15C0 Start with 50 continues
173F-15C0 Start with 99 continues
C238-1140 Infinite continues
D522-3545 Start with 1/4 normal health
DE22-3545 Start with 1/2 normal health
F922-3545 Start with 3/4 normal health
C935-40C0 Infinite health
DD3B-C0C0 Infinite time--Timer will run down but will reset. Switch off 
effects to complete bonus stage.
D035-C540 Faster timer
DF64-41C0 You have 1 minute to complete act 1, level 1 
D964-41C0 You have 5 minutes to complete act 1, level 1

With the rest of the codes, the graphic will show +10, but the codes do work
35 DD30-C910 Red bird worth 0 seconds instead of 10
36 D430-C910 Red bird worth 20 seconds
37 D730-C910 Red bird worth 30 seconds
38 D030-C910 Red bird worth 40 seconds
39 D930-C910 Red bird worth 50 seconds