Psychotic

''"DO YOU KNOW IT FEELS BEING RIPPED THROUGH SPACE AND TIME? No, you don't." -Psychotic''Psychotic is a toad who was sent to The Pits for "being downright insane".

Plot
Psychotic is important to the plot. He is an entity that separates you from different endings.

You have an option to speak with him when you first meet him in Act 2. He explains that he was born at the same time as a Reality Shift. This is the Reality Shift that Tommy and Co. started in the beginning. Psychotic recognizes Tommy as his father and tells him to "enter his realm." If Tommy snatches the Guard Keys and walks into Psychotics room, a battle is started.

In the Lunatic Ending, Psychotic comes out of nowhere and kills Tummy. Psychotic has a final battle with Tommy, with no help from Tammy, The Babies, or TumCrow. Psychotic declares The Void to be renamed "The Lunar-tic Dimension". Psychotic is eventually defeated, and Tommy and Co. are returned to the mortal realm.

Ending Importance
If you defeat Psychotic, one part of The True Ending will be triggered.

If you leave after speaking to Psychotic, the Not-so-good Ending will be triggered.

If you don't speak or defeat Psychotic, one part of the Lunatic Ending is triggered.

Trivia

 * Psychotic is the only Son to appear in the whole game.
 * Unless you are counting "Little Jimmy" that is.
 * If you spam leave and enter Psychotic's room after you defeat him, his corpse will start floating and say "Why do you keep coming back in here?". This event is not triggered again.
 * Psychotic seems to be self-aware, as he calls himself "The Brave", which is what the series creator calls himself on social media.