Platforms (Plataformas, 演壇) and Conveyors (Esteiras, 導体) are a element in VVVVVV, they're 4-blocks sized, and appear in multiple ways.
Moving[]
Platforms that move down, up, left or right. They will follow a pattern or just move from a extreme to another. Veridian, crewmates or walls block Moving Platforms path, they can be destroyed with the script command destroy(platforms). In the main game, Disappearing Platforms can be seen blocking Moving Platforms path. This is done via hard coding, and is not featured in the level editor.
Disappearing[]
Similar to Moving, but instead of moving, they will disappear when the player touches it. In the main game, Disappearing Platforms can be seen blocking Moving Platforms path. This is done via hard coding, and is not featured in the level editor.
Conveyors[]
Will auto-move Viridian when he touches it, the player can counter-attack by pressing the opposed side key, or making it faster by pressing the same key. They will move Viridian down or up.
Trivia[]
For some reason, The platform in Polar Dimension in Player Levels seems to be green instead of gray. You can turn it into gray if you can find the green color for Polar Dimension, then change it to gray.