A few thoughts I had while playing: 

- The text is cut off for the help in the options menu.
- The text is also cut off for the Mr. Sword item.
- The dialogue is very Earthbound-ish. It's definitely teetering on the edge of
lolrandumb, but so far it's entertaining.
- I'd suggest changing the Armor menu command to something like equip, since it
allows you to equip armor AND weapons.
- There's no battle background for enemies past the first area of the forest. I
don't know how much knowledge you have of RPG maker but you need to set it for
every map.
- I'm really not keen on the forest map. It's a straight line basically, but I worry if you have such wide swathes of space in more complicated maps, they'll be really slow to explore. Consider making your dungeon maps more compact and with more interesting path shapes. Does that make sense? Basically, you have lots of big spaces and no distinct details/landmarks. I'd take a look at some snes RPGs and study their maps to see how to make interesting dungeons. Also take note of what the player can see on the screen at one time, as well as the whole shape of the map. What might appear to be a simple hallway in the map editor, might feel like an endless trek from a player's eye view.

The gameplay is simple, but it works fine. It was the writing is what kept me playing, though. Good effort! Get some more enemy variety and better maps and you're on the road to a good game!

It's a start. The beginning had charm, especially the interactions with objects. Clever puns, worth a smile and laugh. Also enjoyed the modified music. The first very, very long field with a million slimes is a bit repetitive, and too long for a first "dungeon" with no different enemies.