Skateboard

The Skateboard was a weapon and vehicle that was dropped during the development of Grand Theft Auto: San Andreas. It was meant to be introduced to the player in the mission Madd Dogg's Rhymes.

There is little leftover data related to riding the skateboard. The skateboard is developed enough that it is specified to which surface is skateable. In the gta3.img file, the animation file for the skateboard exists.

On the other hand, the skateboard does exist as a fully functional weapon except in the PS2 version, where only the HUD icon remains. However, it is normally disabled and cannot be found anywhere. When enabled properly, it appears in one of the game's unused burglary houses.

In GTA Online, a skateboard can be seen on a shelf in one of the rooms of an apartment containing a 10 car garage.

It is possible that the Skateboard will appear in a future GTA game.

Trivia

 * The Skateboard will have most likely been found in the Skate Park in Los Santos.
 * Judging by game files, it was used in the game Bully.