Thank you so much for trying it out and giving feedback!
The cutscenes being slow were already told by a lot of people so I actually already plan on making it shorter and faster as soon as I get to it (I originally wanted it to feel like an actual slow flashback but I guess it really gets boring after a while, so definitely will be changed!). The placement of the cutscenes in the current stage is mostly placeholder since I wasn't able to finish enough levels but managed to make cutscenes already for them, so I just dropped all three in one testing stage, I will surely make the cutscenes rarer and more level-oriented as some sort of reward when I get to it soon though, thank you for letting me know!
People also already mentioned the jump should be W (I mostly used space in games so I used that as primary control for this but will definitely make the option to have it W or space in next updates)!
Thank you so much for the feedback on the art! I mostly focused on the art itself and storytelling mechanic on this prototype so I could know what people think of it and change it before I work more on main gameplay mechanics and I think people liked the style so I will be moving on to core mechanics now! There's already quite a few mechanics I already have coded but I wasn't able to put since the level is too small and scrunched up as a testing ground, and would feel really overwhelming to drop all of it in there.
Really, thank you for giving your feedback once again! I definitely will keep those in mind and improve as I go on!