The Thermal Discouragement Beam, or simply laser, is a testing element from Portal 2. It is the successor to the High Energy Pellet.
In game Edit
The Thermal Discouragement Beam instantly kills all enemies not specifically immune to them, as well as the player. They can be block by Weighted Storage Cubes. Additionally, they can trigger laser catchers.
Laser Catchers Edit
Laser catchers give an output when touched by a Thermal Discouragement Beam. Interestingly, they do not light up like in Portal 2.
- There are no redirection cubes in Mari0, this is probably because they wouldn't have a big enough impact in only two dimensions.
- Laser Catchers do not block Thermal Discouragement Beams in Mari0, so they can be used as Laser Relays.