One Side Collision Block (block category)

A one side collision block is a type of foreground which restricts the player from passing the block in a certain direction.

List of Horizontal One Side Collision Blocks

Items	Special Function
https://growtopiawiki.nbg1.your-objectstorage.com/uploads/8/8f/ItemSprites.png One-Way Block	This item can be placed in two directions.

Items	Special Function
https://growtopiawiki.nbg1.your-objectstorage.com/uploads/8/8f/ItemSprites.png Cosmic Rain	None.
https://growtopiawiki.nbg1.your-objectstorage.com/uploads/8/8f/ItemSprites.png Waterfall	None.
https://growtopiawiki.nbg1.your-objectstorage.com/uploads/8/8f/ItemSprites.png Castle Sewage Pipe	None.