This is a real gem. You have a talent and an instinct for game design and the world and art you create is unique and fun. I actually forgot this game was nsfw several times over because I was just having so much fun jumping around collecting stuff. I played on 1.03 (pretty sure) with around 5-6 hours of time, yet to get an ending (I can, I just want to pick up a few scenes I'm missing before I go forward).
Bugs were pretty minimal, save/load system is forgiving enough that I never lost a significant amount of progress. One I haven't seen mentioned here is that using an item (shell, trumpet, watering can) in the air can lock you in the middle of that item animation, removing your ability to jump and slowing you significantly. I reproduced it several times, most often with the shell. I think you might have to hold a direction or mash keys to make it happen. Once you are locked, you can change items with G to change your appearance, but this will not unlock you. Other than this, I had no major stability or graphical issues.
Gameplay-wise, I have only a few minor complaints
-LMB for attack is somewhat awkward. I found myself having to switch between both hands on the keyboard for the more involved platforming sections to keyboard and mouse for fighting. Might just be a me thing, but I'd appreciate a chance for an all-keyboard scheme or even key remapping in the future.
-Projectiles can travel quite a ways from off-screen enemies, leading to some frustrating and what feels like unavoidable damage. It's not too bad in this context given the difficulty is pretty light in general, but in a longer game with less forgiving save/load systems it might be a more major gripe.
-Visual style sometimes makes the environment less readable. You seem to be aware of this and you're good at putting hints for most of the less readable parts, but it did cause some frustration here and there. The last door in the dreamworld sticks out- I did the level 3 more times after "completing" it the first time because the orange outline of the door blended well enough that I thought the top route was a dead end.
-There's a little to be said about how cryptic some hints and dialogue is, but I (for the most part) actually enjoy a little less to go on. I am stuck on the Cucucumber, however- I know it's somewhere in the desert world and I'm certain it has something to do with some NPC (the sleeping girl? the wings guy probably brings you back after you portal to the cloud?), but I don't have anything more than that after completing what seems to be every other quest in the area. A little hint might be nice- I'm only the 35 and 195 doors away from what is (I think) 100% completion.
Thanks again for the game Roksim- I'll be looking to support you in the future.