Grey Blocks are small, semi-transparent blocks first introduced in Danger Above. They are created to suspend structures and give them the illusion of hovering over the ground.
In Theme 8-3, the name "Ethan" is made out of invisible blocks.
|Angry Birds||Glass • Wood • Stone • Grey Blocks|
|Angry Birds Seasons||Gold • Clouds • Snow • Ghost Blocks|
|Angry Birds Rio||Sand • Iron|