Tenet the video game! This is a really creative idea, I had fun with it!

Super cool, I do think the isometric perspective is not the way to go for this.  I think a standard 3rd person camera would be the way to go, just because of how important angles are in this.  I also thought it was annoying moving the area between rooms, a recall button would be nice, or a special ability where you are able to fire the arrow, but its on a long cooldown.

cool concept 

Cool diablo-like aesthetic and creative mechanic that makes the arrow act like a boomerang around the player's position, good going!

OOOOH THIS IS LIKE TENET! AMAZING

I like the way that shooting become not only the interesting reversed roles mechanic, but also an interesting puzzle thing)

Nice concept, i like the pixel shader.