This game definitely has potential, it just needs more time in the oven (I think that's how the phrase goes)
Firstly, the art is really nice (and probably this game's strong point), and the movement is a bit slow, but it's manageable imo. RIP the music, was gonna vibe to the pulse channels till I realised it had no music.
...but why no sfx? I can understand music, as making actually good music for the gameboy using its 2 pulse, 1 wave, 1 noise channels can be difficult, but the lack of sfx made the game wayyyyyyyyy to empty imo.
Now, I never actual beat this game because of 2 reasons: ( well, I mean, laziness was part of it but the main 2 were)
1) Softlocks.
litteraly, if you go up at the start, go left, go up, and then keep holding up when you exit the planet, you'll actually clip out of bounds, and be unable to get back, effectively softlocking you. Sure, there's the save feature, but even in a different room, aka the one Zani.Pixels mentioned, it's possible to walk to the top / bottom of the well and dog house room, and be unable to get out :/
2) The map is H U G E
i legit got trapped in this room without a fishing rod and couldn't get out lmao
This game is definitely very good, and the fact that it's on an actual gameboy is great, but there just a couple things preventing this game from being really good, that all.