Upon playing this game, my heart was filled with DETERMINATION.
All puns aside, I loved the atmosphere. The nostalgic soundtrack, cute little pixelart world and (sometimes) cringeworthy dialogue were just spot-on. Story was very nice, but deserves a bigger scope - some things simply cannot be told in a little jam game the way they could in a full flashed out game. The intro cutscene - though minimalistic - simply felt very good in a professional sense, I cannot even say why exactly that is but it's true.
Aside from the minor bugs (which you already mentioned on your jam page) the only real thing you could improve on is the layout of the levels (you might want to separate spaces from one another more clearly, or add visible boundaries / indicators in places where you can't go any further), but its fine for a jam game.
To sum it up, your art and writing is absolutely delightful. Keep up your good work!
U did this in a single afternoon all by yourself? Respects!
P.S.: The cover art is amazing! As a matter of fact.