The core gameplay loop is solid, but this game feels pretty rough around the edges. Besides the obvious like the lack of music, there are a lot of little things like the attack visual being way smaller than the hitbox, the skeletons not moving away from a ledge you need to jump on, the audible background hiss of the bomb sound, being able to leave blocks suspended in midair before the game teaches you how to dig upwards (that bit of tutorialization is really elegant), etc. It also feels like there was a bit of extra scope that got hit by the jam deadline - outside of equipping bombs I never needed to use the inventory, that could've just been a single button press.
On a more positive note, the game is really well structured in terms of layout, it teaches you every single mechanic without a single word - every time I found a new block type it was "Huh, I can't do anything" -> find new power-up- > "I remember where to try that!". And the graphics aren't the most technically impressive but they're pure gameboy vibes - easy 5/5 in the soul category.