Board Thread:Geometry Dash Gameplay Discussion/@comment-70.106.233.143-20150530004142/@comment-26462089-20150606151046

It's widely called the robot. This is similar to how the wave has other names, such as the arrow. Even the spaceship is sometimes called the hover board.

Once 2.0 comes out, it will be easy to get the robot template from the GD resources file.