This is an April Fools joke inspired by the movie Tenet. Everything that happens in the video was planned out, and the time reversal would not actually be possible in a real game. If you think it could actually be implemented in a game, you either need to think about it some more, or you're a genius and you should make it real.

Original description: "A demo of gameplay from Terret - A first-person-shooter set in a world with time-reversal machines."

CREDITS:

Game/Video by HTML_Earth
Gnome and additional props by Kattejuice

Made using Unity.
All custom models made in Blender.

RESOURCES USED:

Textures from Textures.com
Audio from Sonniss.com free GDC game audio bundles, ZERO-G Altered States, Ableton Live, and freesound.com
Assets from Unity 2020.2 HDRP Template

Reverse particle system playback based on tutorial by Mirza Beig
http://www.mirzabeig.com/tutorials/re...

HDRP Water Shader Graph by Çağlayan Karagözler
https://github.com/flamacore/UnityHDR...

Xolonium font by Severin Meyer
https://www.dafont.com/xolonium.font

From the Unity Asset Store:

Wooden PBR Table by Intercido
https://assetstore.unity.com/packages...

HQ PBR Old Retro Radio by PHOS digital
https://assetstore.unity.com/packages...

Freight Train by Maker Games Studios
https://assetstore.unity.com/packages...

Old Plastic barrier by VintProg
https://assetstore.unity.com/packages...

PBR Folding Chairs by Wireframe Warehouse
https://assetstore.unity.com/packages...

PBR Dirty Dumpster by Radu Mitroi
https://assetstore.unity.com/packages...

Shipping Container PBR (SAMPLE) by Sayantan Biswas
https://assetstore.unity.com/packages...

Vehicle Parking Lot Garage Gate PBR by devotid
https://assetstore.unity.com/packages...

Dirty Wooden Crate by kawetofe
https://assetstore.unity.com/packages...

Propane Tank HDRP by FunDev
https://assetstore.unity.com/packages...

Industrial Tanks Package by Abandoned World
https://assetstore.unity.com/packages...

Industrial Props PBR by Osmann
https://assetstore.unity.com/packages...

FREE PBR Security Camera by Red Dot Lab
https://assetstore.unity.com/packages...

Unity Particle Pack by Unity Technologies
https://assetstore.unity.com/packages...

FREE LA Buildings Vol 1 and 4 by vrbn studios
https://assetstore.unity.com/packages...
https://assetstore.unity.com/packages...

PBR Game-Ready Desks Pack by Drunken Lizard Games
https://assetstore.unity.com/packages...

PBR Cardboard Box by Crow Art
https://assetstore.unity.com/packages...

Old Television PBR FREE by Essen
https://assetstore.unity.com/packages...