The following are known Action Replay Codes for Dark Summit on Nintendo GameCube (GCN).

Master Code – Must Be On
1EE1-8CQ5-HFKQX
X52X-G75U-E0GAY

Low Gravity
A4VX-PQF5-PYN39
PK5Z-773M-PWGR6

Crazy Gravity
8CM7-Y4X3-HC46Q
R1YC-KQPA-B325U

Fast Rotation
GGCZ-YHTN-5F9EQ
7M9X-Q1XY-NV733

Fast Flipping
GX2V-KE87-0VNUH
388U-E0PC-U2WAY