This is a great core mechanic for a game! The time dilation was well done, and the movement felt natural. I beat it :D
A couple times the the camera was a bit too slow for how i wanted to play, so i wish it was tracking the gun along the track. I also wish there was some more middle ground between slow and not slow. Maybe using something like scroll wheel or interpolation to make that transition slower could be fun.
Great submission and fun game!