This cheat gives you an unbeatable Sableye.  Here’s the code:

94000130 FCFF0000
B21C4D28 00000000
B0000004 00000000
E0000304 000000EC
59FB59FA F3B40000
1C647ACE B8DF04F9
012B7F2F 2A977611
03246BB0 DA7D1D57
BF0D1F50 8EC979EA
A5CA420B 906C3E10
F1389A72 484E402F
0F0B69CD B2D1FBF5
6E942DCB B706665A
0EDFE7F5 F7EFCFB2
02D08167 D686B223
BFCA5D3E 7785C8AC
6B160A42 9F626B42
7D11F20D 57D63C9B
2D307619 D0CAD8C7
B3524369 5F9D04CC
6BED1FE0 167A6F47
69EAF6CB 65D07629
344AC59F C7B2EE65
9FDFCC9B 618FB50F
589FF7A4 D371E79D
9BDB99D8 B8516FC4
964E9221 051551E1
2EEF5CE7 8F5D9DC0
CEC9C883 00C5D476
0FDA4137 BA6BD76F
763EE85E 6CAEB4C2
978DEAE4 6738E4CC
5480CAF7 E53FCCFC
08DA90FE 00000000
D2000000 00000000

You can buy an Action replay here. They are definitely worth it: