This shows when Rosy returns back to him and he plans on executing her and threatening to murder Cream who only chimed into the conversation. He is considerably cruel and wicked when addressing his minions if they fail with his orders and won't even hesitate to threaten or kill them.

Unlike Exetior, who is supportive and kind to his servants, Sark is the exact opposite and rules over them with an iron fist. Exetior later finds a ring which leads to Sark's dimension. Sark reveals himself and even revealed that he raped Amy/Rosy before killing her, he attempts to kill Tails but he defends himself from the demon. After murdering a few animals to escape from Exetior he ends up in Sark's dimension, finding the corpses of his victims. In the remake of Nightmare Beginning Sark can be shown in a secret with Tails. Before the game ends he utters 'Now die.' After Sally is possessed by Stich-Lite, Amy and Cream find her looking over at Sark, who is looking down on Exetior and Negagen sitting next to a buzzsaw, revealing that Sark has finally betrayed them. Sark has a much more important role in the true/canon ending of the game. He then asks the two Time Stones he has to show him a future where Exetior subdues the Freedom Fighters, but is instead watching a future of Rosy being taken away. Eggman on collecting the Time Stones to enslave other worlds. Sark's second secret is him planning with Dr. Sark is bewildered and frustrated, and plans on getting revenge on Exetior. He and his servants are quickly defeated by Exetior's, Sark advises them to leave until Exetior himself shows up and takes Rosy with him. Sark arrives and taunts Rosy, revealing that he had Cream watch over her the entire time and knows about her secret visit. She returns to Sark's base only to be greeted by her world version of Cream and Sally. Rosy decides to escape from him and goes to Exetior's base, where she develops a crush on him and leaves them after a short amount of time. After demonizing the entire population of Mobius, the male population become strangely idiotic, mindless and perverted, forcing Sark to kill them all after they tried overthrowing him and left only the girls alive.

Sark then took his appearance and proceeded to kill all of his friends and forming an alliance with Exetior. Many centuries later, Sark escaped and found another universe housing anthropomorphic animals and killed Sonic the Hedgehog. Sark joined Exetior in his quest to defeat the Highests, but after the war the Highests came out victorious and sent Exetior to Hell, one of the Highests, Stich-Lite, kept Sark and Pervision, torturing them until they became insane. Sark was originally a demon of sharpness who lead the sharpers in invading other worlds and mocking the mortals.

3.1 Sally.exe: Continued Nightmare - Eye Of Three.

Sonic exe nightmare beginning