NORMAL ENDINGS:

Good Ending: The Project nexus is Saved.

Bad Ending: The Protagonist is dead forever.

ALTERNATIVE ENDINGS:

Madness Day Ending: You Celebrated Madness Day too early on February.

Torture Ending: You've Tortured the Mag Agent.

Cheater Ending: You Cheated in Madness Interactive using a Cheat code.

Protagonist Ending: You Went into the Madness Difficulty, Good luck!

DEATH ENDINGS:

Everyone is Dead Ending: You've Killed everyone like the Agents and The A.T.P Engineers.

THIS. IS. MADNESS!!! Ending: You've gone crazy that you also killed everyone.

Hank Ending: You died from a Enhanced A.T.P Engineer.

These endings were inspired from BevelHD, Go Shoutout to him!