Mario Power Tennis (Nintendo GameCube) Playthrough - Part 14 {Thunder Cup - Singles} @GreyGuerillaNetwork

Mario Power Tennis (Nintendo GameCube) Playthrough - Part 14 {Thunder Cup - Singles} @GreyGuerillaNetwork

Uploaded May 2012 | Updated September 2026, 12 hours ago

The semifinals of the Thunder Cup are here. Fly Guy and Bowser will be duking it out at Bowser's Castle to determine who goes on to the finals, and who goes home.

Mario Power Tennis (Nintendo GameCube) Playthrough - Part 14 {Thunder Cup - Singles}

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Mario Power Tennis (Nintendo GameCube) Playthrough - Part 14 {Thunder Cup - Singles}