Love the pastel colors and pixel art (*/ω＼) Using top and side views is fun, reminds me of Tales of Phantasia.
I wasn't sure how to beat the cactus enemy without getting hit, I think it could be better if the spike was more predictable? Maybe always shoot it at the same vertical position with a clear anticipation sprite, or have a unique sprite for high and low attacks so the player knows to jump or stay grounded.