Great idea and everything looked awesome in my opinion.
The drop rate made this feel more like an AFK/Clicker game though as I felt my attention drifting away after a couple of minutes and still only have 16/20 feathers towards the jump ability after something like 5~ minutes of circling the crowded areas. If this had more time to be more polished, more "juiced", and satisfying, I think I could have sat here for hours running over zombies.
I also had to mute it eventually as the music and SFX got repetitive pretty quickly but that's a ME problem when playing a game that was made in a week.
Game ran well, I like looking at it. Great take on the theme. It was a game that I could shut my brain off and play for a bit and feel like I did something productive, and that is a positive to me!