I like your Idea and your art. You could've imported the pixel art differently to not have any filters on it to prevent the blurriness. Unfortunately I encountered a bug where I just get thrown off the screen every time I played. Loved collecting gold tho.

I like twin stick style games. The  wiggly running animation on the spear is also funny. I noticed how some of your imported sprites are a bit blurry despite being pixel art. This is actually a quick and easy fix! Just change on the settings on the sprite in your project the "Filter Mode" form "Bilinear" to "Point". Here is a video on how you do that: