Yoshi's Island DS v1.1 - Action Replay

Infinite Flutter Jump (Dualscreenman)
62106228 00000000
B2106228 00000000
200000F0 00000038
D2000000 00000000

Moon Jump (Dualscreenman)
94000130 FFFD0000
62106228 00000000
B2106228 00000000
00000054 FFFFC100
D2000000 00000000

Head Sprite Modifier (Dualscreenman)
0237EA45 000000XX

Yoshi's Island DS v1.1 - CodeBreaker

Infinite Flutter Jump (Dualscreenman)
62106228 FFFFC100
000000F0 21210000

Moon Jump (Dualscreenman)
62106228 FFFFC100
00000054 21210000

Head Sprite Modifier (Dualscreenman)
2237EA45 000000XX

Notes

Head Sprite Modifier
00 - Normal face
01 - Full cheeks
02 - Full cheeks shaking head, head turns invisible too
03 - Yoshi's head gets pushed back, decapitated, Yoshi strains
04 - All kinds of weird junk
05 - Normal face
06 - Head off body, Yoshi is happy that way you know.
07 - Decapitated head looks at you!
08 - Normal face, scratches a full chin