- Vertical movement feels a little floaty compared to the horizontal which feels like it "snaps" the character still as soon as you let go of the button.
- Jumping and Attacking have some weird interactions where attacking mid air will stop the player character mid jump, etc. The other way around - Jumping while mid attack sorta just does a weird half jitter. Should probably just not allow jumping while mid-attack.
- Inventory is serviceable, but its awkward to switch to the mouse when you want to use it, when everything else is keyboard driven. Make it so player movment is locked while inventory is open and you have an active select box that you can move with arrow keys. When you hit Enter or what have you the item is highlited, and you can move the select box to antother item, and hit Enter again to swap the items. (alternatively you can make the mouse cursor snap to the grid and keep both systems) Bonus: Moving all the way up allows you to select the various tabs and move trough them, moving all the way to the bottom left allows you to highlight the BUY or SELL button and pressing Enter activates it.
- Bonus feature idea: PC is a frog - why Make jumping interesting - tapping jump gives you a short jump, enough to clear a fence maybe. If you HOLD jump, it locks the player in place. The longer you hold Jump the higher the PC will jump once released, allowing you to cover longer distances. You can even have him go in a sitting, frog like pose when the button is held.
Shows lots of promise. Keep it up. If it were up to me I'd turn this into a mixture between Stranded Kids/Survival Kids for GBC and Harvest Moon/Stardew valley.
Heres my vivid imagination when I play this: Imagine a tropical Island where you've washed up. You pick up a stick and a rock and combine them to make a shovel. Eating raw berries you eventually find some seeds, grow food and settle down in a hollow log. There's a few areas available to you but a huge boulder blocking off the path to the rest of the island. Eventually you're able to grow bamboo (need to water it, need to make watering can, need to give it nutrients, have to hunt/gather specific stuff to turn it into fertilizer etc. Progression based on your farming. Once you have bamboo you can use a stick of it to stick it under huge boulder, move it and get further inland. You find more wild animals to hunt, wild tomato plant that you can grow using bamboo to support it, etc. You get a few more areas, but to the east is a fast river with a waterfall that you cant cross. Gonna need to make/grow something to cross it. You eventually build a home out of the hollow log, build more outposts/farms in the new areas of the island, eventually you find a cove with strong wood and start building a boat. The end goal is to leave the island.
I'm sure you know what harvest moon is, but maybe take a look at Survival Kids. I'd kill for a game that combined the two.