Good Ending: You stopped Eggman and saved the day.
Neutral Ending: You stopped Eggman, but he got all the Chaos Emeralds, and is seeking revenge now.
Bad Ending: You failed to stop Eggman, and he took over the world.
Better Ending: You got all the Chaos Emeralds, and stopped Eggman.
Badder Ending: Eggman got all the Emeralds and took over the world.
Best Ending: You got all the Chaos and Super Emeralds, and Master Emerald, and stopped Eggman once and for all, Earth/Mobius is now free from any evil.
Worst Ending: Eggman got all the Chaos and Super Emeralds, and the Master Emerald, he killed you, and took over the Earth/Mobius permanently, there are no heroes left to stop him.
True Ending: You convinced Eggman to stop his evil ways and he turned good, becoming one of your bestest friends.
Dream Ending: It was all just a good dream, now go to school/work, you'll be early.
Nightmare Ending: Eggman killed you, and your friends and loved ones, and all the people/animals on Earth/Mobius. But it turned out to be a Nightmare which will haunt your mind and imagination for the rest of your life. Now hurry up, you're late for school/work
Schizophrenia Ending: The whole thing was all in your mind, you were running around your house looking like an idiot. Now take your medication you weirdo.
Dementia Ending: ....Who's Eggman?... Who are you?.... Who am I?...... Why do I need to save the world?......
Poop Ending: Wait, what?
Choose Ending: You Choose your ending
End Ending: The End