Very hard game, but doable. I agree with previous comments.

Here are a few other tips and feedbacks:

1. A game speed slider would be beneficial. It’s easily doable through Engine.time_scale if you used delta in your _physics_process.
2. When catching you, the ghost taking you back to the start seems to be animated through a tween with a fixed duration, making it very punishing near the end. You could set duration based on distance with duration = distance/speed.
3. I don’t think anyone likes bonking on the ceiling, especially when followed by a bunch of precise jumps, with a high-speed character and no coyote time.
4. When the ghost drops you while you are inside terrain, you are stuck and need to restart the game.
5. Adding a full-screen button to the web export (it’s an option in edit game on itch.io) would make it easier to play (providing you handle window resizing), because I had to make the browser full-screen then carefully scroll to see the whole game screen.
6. You should make the end more rewarding. I know you probably didn’t have time, but at least queue_freeing the ghost when reaching the top would be great.

Re-using the player's pathing for the ghost was a neat idea. And the ghosts sprite is cute.

The game would definitely gain a lot by adding some coyote time.

It's an interesting mechanic for a platformer, it encourages you to rush through the game instead of taking your time.

I think that with the added difficulty of the ghost chasing you, you could have made the platforming easier. I couldn't get past the vertical wall section.

I agree with Cedric Here, I really like the mechanic of the pursuer but the platforming frustrated me. I like having to wiggle out of the ghost lol.

Man, this game is really hard. I tried to reach the top, but it's so hard to time the jump correctly since you start falling at Mac 2 speed whenever you reach the max height. However, the pursuer mechanic is well implemented and trying to dodge the ghost while platforming is an interesting concept.