Not to be confused with the Worst ending in the final version of Nightmare Beginning.
First Old Version
Sonic walks through his mind past all of his demonized friends and Eggman, and reaches old Exetior, who says "It's over". After touching him, Exetior vanishes, and Sonic then turns to look at the screen. Sonic then dies, and the smiling Exetior soon appears in place of him. Exetior's portrait used in the game then appears on-screen.
Second Old Version
Sonic walks through his mind past demonized Tails, who says "Please don't leave me Sonic!", demonized Knuckles, who says "Stay here buddy - from here there is no escape.", and demonized Eggman, who says "Seems that you are met with something new. This new - failure..."
Sonic reaches old Exetior, who says "It's over". After touching him, Exetior vanishes, and Sonic then turns to look at the screen. He slowly fades away. Exetior soon appears in place of him, with Sonic fading in next to him. When he fully fades in, he walks away. Exetior then asks Sonic if he still hasn't lost hope. He then smiles and tells him not to worry, as something tells him it's not all of Sonic's friends. He fades away.
It then shows demonized Tails piloting the Tornado with Exetior and Knuckles on it, and Exetior says "Get ready girls! We are going!"