Here is All 18 Side Mission Walkthrough In the game made by me of course, Enjoy :)
A Captive Audience
A Good Defense
A Merry Chase
A Matter of Time
Fridge Duty - The Former Boss
Langston's Runaways - The Former Boss
The Enemy Within - The Anchor Boss
Self-Reflection - esseJ Boss
Mold Removal
Mr. Tommasi - Mr. Tommasi Boss
Old Friends
Old Growth - Mold -1
What A Mess: In Order
01 Clear the Clog
02 Talk to the Plants
03 Clear the Mold
04 Even More Mold
05 Burn the Trash
06 Take a Break