The following are known Gecko Codes for Deca Sporta 3: Wii de Sports 10 Shumoku! on Nintendo Wii (Wii).

File 1 - All Challenges Clear [Glitch]
08337360 00000001
00090001 00000000

File 2 - All Challenges Clear [Glitch]
08337FCC 00000001
00090001 00000000

File 3 - All Challenges Clear [Glitch]
08338C38 00000001
00090001 00000000

File 4 - All Challenges Clear [Glitch]
083398A4 00000001
00090001 00000000