Tlamakoph is sitting on the bed in his 1st human form which he used for Leighton Arnold and his guilt rose up within him as he rubbed his face.

During his final video, Tlamakoph told his audience the truth about himself and revealed his true form which is formless, empty and nothing while his voice is still there

During his 19th video, Leighton was distracted by the wifi sky bus when he was about to introduce himself again to his audience then he continued playing Portal 2 until he completed the 19th level. Also he told his audience that his name is not Leighton and he will reveal his real name in his final video.

During his 18th video, Leighton continued playing Portal 2 until he completed the 18th level

During his 17th video, Leighton claims that he is fine even though he is affected by the death of the companion cube and he continued playing Portal 2 until he completed the 17th level while saying to himself to just let it go.

During his 16th video, Leighton continued playing Portal 2 until he completed the 16th level and he felt distraught when his companion cube was destroyed the 3rd time

During his 15th video, Leighton continued playing Portal 2 until he completed the 15th level.

During his 14th video, Leighton continued playing Portal 2 until he completed the 14th level