Block Fort

Appearance in Mario Kart 64
The Block Fort is a battle course in the Mario Kart series. It first appeared in Mario Kart 64 with four structures in each corner of the level. Ramps lead up to the first level, where thin bridges lead to the other forts. Another ramp leads to the top level, with longer bridges to the other forts roofs. Item Boxes are on the ground levels edge-wall, and on both of the forts' levels.

Appearance in Mario Kart DS
This battle course reappears in the game Mario Kart DS. Block City of Mario Kart: Double Dash!! and Block Plaza of Mario Kart Wii appear to be based on Block Fort.

Instruction Manual Description
''The map consists of a series of floors, each three levels high. The four blocks are colored red, yellow, green and blue so you can quickly check your opponents' screens to find their locations.''