There are a variety of different ‘Looks’ blocks that can be useful. The main one is the show and hides blocks. This allows for a sprite to be hidden and then appear at a certain time when commanded to do so. There are also the costume blocks, which allow a sprite to change its looks, but not changing the entire sprite. This can be useful when you want a sprite to look like it is moving. Additionally, there are the size blocks, which allow you to either increase or decrease the size of the sprite depending on what type of game you are trying to create. I am looking forward to using these blocks in my future games.