Hey!
The demo you played is suuper old, since then I transitioned to "Hades/Vampire Survivors" type of game as I deemed the Metroidvania idea too ambitious. Here's a link to the demo if you'd like to try it out: click.
Regarding your feedback:
- I removed the trees (at least for now)
- This shouldn't be the case any more, but if it is: can you tell me which effects seem to be the issue?
- I did move the camera away a bit. Let me know if you think it's far enough.
Thanks for playing man <3