Awesome, thanks for the feedback! I do want to add death effects to both the enemies and the player, but I've been worried to do add it this late because the way it has to be implemented currently is pretty easy to cause null reference object crashes.
In terms of the dash, one of the things I'm planning on finalizing during the grace period is an after-image effect on the player. We'll see if I actually do it.
Ironically, I think the wall sliding itself feels pretty bad and I'm very strongly considering removing it from the current build since there's literally no situation in which it comes in handy. Ledge climbing will stay, of course, but it's something I want to clean up in the future in terms of some of the logic behind it.
Glad you got to finally play it, it's been a long time coming!