This is a short TAS or tool assisted superplay.
Enjoy! :)
What is a TAS?
In this case a TAS is using mods to slow the game down as well as saving at crucial parts of the run so the player doesn't have to do everything in one go.
LoTAS: https://www.curseforge.com/minecraft/mc-mo...
How to do a TAS: • TAS 101 | The Full Guide To TAS in Minecraft
Took inspiration from WeaknessMC's video:
• Aggressive Minecraft Gameplay [TAS]
Song: Cat by c418:
• Cat
Second channel: / @minecraftnt_runs