The game is really interesting and the difficulty factor is quite right in my opinion. I really enjoyed playng it. It took me some time to get used to the controls when it comes to attacking enemies because of the down arrow = forwards, but everything else is intuitive. I love the pixel art and the artstyle used, it is complex yet simple, understandable and just the right amount of pixels and colours to make it not overwhelming but pleasent to look at. Would love to see more of your games, maybe even a sequel to this one. 

Very nice realization of the theme. I love your  pixels. Fun play! Add sounds and give it the final polishing, please.

This is a very pretty game! Love the pixel aesthetic! There's a couple issues, including one that made it so I couldn't get past a certain point:

• Some of the room transitions put you in weird spots in the rooms you go back into. Notably, going back to the room with the first mushroom enemy from below, and going back towards the first beetle enemy room (I think, the latter one might be after that).
• You might want to note somewhere that when interacting with the fountain, you should click on the options, as I didn't realize the mouse was a part of the game, being all keyboard controls up until then.
• I got stuck in the room with the two beetles, when you more or less first encounter them. I cannot jump high enough to attack them and the room seals up until they are defeated. Did I miss an ability somewhere that lets you jump even higher than the double jump?
• the collision on the vine whip and sometimes the firebolt is a bit arbitrary, as they tend not to always connect with the enemies you hit

Aside from that, the controls are very tight and responsive, the aesthetic is really pretty, and I particularly like the beetle enemies, I think you nailed the timing and speed of their attack!