The game looked neat and was fun.
SamNelos made some great suggestions but I want to reiterate filling up hp&mp upon leveling up, an undo selection in battle, and the alchemist cat only starting with 1hp (immediately dying in the first battle while I was trying to figure things out).
My suggestions/issues:
1. Have a bestiary (that ties in with the scanner - i.e. the monster shows up in your bestiary when you encounter them but with ?? as stats and you can see the stats of enemy creatures once scanned).
2. Journal - Just some prose that tells you what you've already accomplished and what you're current goal is.
3. Item Economy - This is definitely just preference, but the item economy should be set up so that once you are able, you want to purchase higher level healing/mana items. As it is now, it's simply more economical to just purchase the cheapest items (i.e. the next item costs 2x as much but only does 1.5x the benefit; my preference is for there to be a slight edge in purchasing up - if the next item costs 2x as much it should do 2.1x the benefit or something like that).
4. In Battle:
It shows a bar for hp but only the current MP (would be nice to know the max MP off-hand).
Would like to be able to see skill descriptions by hovering over them in the skill select part of battle.