Within an early build of the game recovered from a Nintendo 64DD development disk is a remake of the "Gnat Attack" minigame from Mario Paint. The build is dated to February 11, 1999; as the game itself released almost nine months later, this indicates that this iteration of "Gnat Attack" was cut fairly late into development. The N64DD version differs from its SNES counterpart in its use of fully 3D environments, one of which features a TV displaying the title screen from Super Mario 64. After the player completes a full loop of the four stages available, a medal appears in the bottom-left corner of the screen and the next loop becomes more difficult. After five loops, the game resets to its initial difficulty; beating it a sixth time crashes it. Additionally, there are unique graphics for four other medals, while in normal gameplay, the first medal is replicated each time the player finishes a loop. These features imply that "Gnat Attack" was not completely coded at this point in development.