Hey there, thought I'd give this a listen as I always enjoy hearing Pokémon remixes!
This gets off to a nice moody start, but then the guitar comes in, and that tone is not working at all for me. Sounds like you're playing it in live, which is cool, but you need a bit of a warmer sound to it I think. I know that Lavender Town is depressing, but this isn't sad, it's just a harsh sound. It also sounds pretty out of tune - definitely tune up and do it again. Nice unexpected transition in the middle, however that guitar comes back and has the same problems! The beat works as it is, although there's no harm in adding some more fills and snare builds, and there are some nice synth touches, but I can't get past that guitar. Try adding some countermelodies or some more original melody work, and I wouldn't rule out swapping the guitar for a synth if you still can't get it to sound right.
There's a decent track in here somewhere, just fix that guitar and see what it sounds like after that!