Undertale Timeline Collapse - Hardmode Decay Sans Boss Beaten

A User By The Name @TrollOfGrass Told Me This: When you do like 10% hp he gets 2x faster bit takes 2x more dmg. I Appreciate The Tip, It Did Help. Shoutout To Him!
After Stumbling Across The Godly Flower, I Did The Cowardly But Smart Action of Letting My Teammates Sacrifice Themselves And Get Decay Low, So It Will Be Easier For Me When I'm The Only One Left. I Didn't Take The Fight Seriously Until I Got Him Lower Than 9k(That's The Lowest I Got Him Before.)
To Summon The Strain or Decay Boss, You Must Locate The "Dead Sector" Portal, Where The 2 Bridges Are Behind Grillby's. It Will Teleport You To The Map Shown In The Video.
There Will Be A Flower That Drops Every 15 Minutes. The Flower Will Spawn On One of The Graves. The Flower Stays Spawned For A Actually Long Time(Godly Flower Despawns Quicker However)
Withered Flower(White Outline) = Strain Sans. Corrupted Flower(Red Outline) = Decay Sans. Godly Flower(Purple Outline) = Hardmode Decay Sans.
As For The Boss, Both Bosses Spawn Blasters Anywhere At Anytime, However, Strain Is Most Likely The "Weakest" Boss In The Game, While Decay Is Much More Lethal, Especially HM Decay. Strain Has 25000 HP While Both Decay Bosses Have 45000 HP. The Hardmode Decay Boss Feels Like The Normal Decay Boss, But This Time, Instead of Recklessly Using His Moves, He Uses Them More Precise and Carefully, Only Spamming The Lower He Gets. He Also Has The Slashes and Special Hell Attacks of Killer! Sans. All 3 Bosses Need To Get Below 5000 HP To Be Defeated.

[@TrollOfGrass]

Hey hey hey goodjob

[@BlackProwler]

3:43 Was When I Was The Last One Alive.