The art department needs a raise! Incredible visuals and music (nice hints of alttp there), supported by great implementation and mechanics.
The game design is great, levels are clever and the tile sets are beautiful (with the problems everyone mentioned). Combat feels super fun, as does slide. The different abilities and the way they synergize is brilliant. Cutting back on the player knockback after landing an attack could help make up for minor imperfections in the level design (like having player knockback transition you to the next screen).
Movement seems a little on the heavy side for acceleration and on the floaty side for inertia. Controls felt tricky at first, specifically having jump right underneath your action keys, but you very much get used to it. You could add a tiny Pause sfx if there's no visual way to tell the player that the game is paused (other than no movement).
Awesome choice of synths and instruments for the scoring, and very nice songwriting experience there. The sfx were great as well, absolutely nailed what the visuals required. Reverb felt a bit off at times although it's barely noticeable so it's not distracting. Like I said, a raise!
I can't wait to see what your team makes of this game, if that's what you plan on doing! Great job with this one.
P.S: I forgot to say, big kudos for the nice amount of functioning enemies!