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- This is the Edgeless Safety Cube equivalent of a Cube Button.
- Edgeless Cubes must be placed into the receptacle to activate certain testing elements such as doors, platforms, or in deploying more testing elements.
- Cubes can not be placed in the Aperture Science Edgeless Safety Cube Receptacle, only a Edgeless Safety Cube can be placed inside them
List of appearances
- Portal 2 (Cooperative campaign only) (First appearance)
- Weighted Storage Cube
- Weighted Pivot Cube
- Edgeless Safety Cube
- Cube Button
- 1500 Megawatt Super Button