If this is your first game, then I'm honestly looking forward to what you create in the future.
You should remove the disclaimer and definitely, *definitely* change the thumbnail image.
From those, I was expecting a crappy quickly cobbled-together game that I'd be done with in thirty seconds – and instead, you created a short but fully featured game with a couple of diverse quests, multiple characters and dialogues – essentially bug-free as well.
Here's a couple of tips, although I'm not aware of what RPG Maker allows you to do:
– I wouldn't force the fullscreen as you start the game. Let players choose whether they want it. Also, on the web, it's not exactly "windowed" mode.
– Does the game need to be letterboxed? Why doesn't it take the whole screen? Even in fullscreen, the actual game doesn't change size, only the black frame around it.
– I'd add some kind of interaction with the cat before you know you have to retrieve it. It's probably the first character most players will talk to, and it doesn't "say" anything. Even "Looks like a stray cat." would be better than no interaction at all.
– Since you never fight, do you need the combat abilities? Does RPG Maker allow you to disable them? You shouldn't include visible features if you're never going to use them.
Similarly, I'd remove the path at the bottom of the map, since you can't go there.
– At the "Outside farm", you can only leave through one of the four squares at the left, although there's nothing indicating why the others cannot be used.
– I'd add more than two conversation options to some people, so it doesn't boil down to "pick the top option to continue the game".
– Does RPG Maker have some sort of quest log? You can somehow keep track of what you're doing now because the game is short; however, if you expanded the game, players might become lost in what they have done and still have to do.
The disclaimer somehow makes it seem like you're embarrassed by this game. Please don't be. Most people's first game is objectively bad – however, this one might be short, but it is *good*.
Good luck with your future projects.