Bowser Court

The Bowser Court is a tennis court that appears in the Nintendo 64 game Mario Tennis. The court is based on the Bowser in the Dark World course of Super Mario 64. The background of the court features rocks, fences, metal walls, and the sky is identical to Bowser in the Dark World's sky. On the ground of the court, there is the picture of Bowser holding his racket with flames nearby. This court has the strongest bounce with a normal ball speed. To unlock the court, the player has to win round three of the GBC Mario Tennis minigame, Two-on-One, then transfer the data through a Transfer Pak. Due to the Transfer Pak being not compatible with the Wii, Wii U or Nintendo Switch, this court cannot be legitimately unlocked in the Virtual Console and Nintendo 64 - Nintendo Switch Online versions of the game.

In-game description
"Bowser's personal court hidden in his dark world."