So The Incident With Mikey Was When A Stealer Came To... You Know Steal Mikey Detected And Went On To Kill Him And He Actually Did Managed To Kill Witch Caused Him To Be Considered Unstable And To Hide The Real Reason Behind His Removal The Oficial Reason Was "Mikey Is Going To New Adventures"

If Mikey Got Brought Back He Wouldn't Fixed Because "Damages Of The Adventure"

The Reason Why He Wants To Enter The Office Is Because

1- Kill The Night Guard For Shocking Him

2- Get Ms. Touchy(I forgot the exact name) To Help Him Remove His Controlled Shock Sensors

The Reason Why The Controlled Shock Works Is Because Deactivate Him Temporary

Mikey Was Removed BEFORE Scratch Transition Thus If He And Scratch Meet Again He Would Be Very Confused

He Usually Played Hide N Seek With The Children(he always found the kids)

They Didn't Destroyed And/Or Deactivate Mikey Is Because For Some Reason He Always Reactivate Himself No Matter What(hence why they needed to put the Controlled Shock)

He Only Hates The Staff Responsible For Putting The Controlled Shock System And Everyone Who Shocks Him(aka Night Guard)