I'm sure the game could use some polish but you're light years ahead of me.
As for the assets, I think that's the GB Oracles Environment pack. If I'm wrong, I don't have an issue buying the tile asset packs as they look great anyway.
Youtube tutorials would be great as I kept messing up the hit detection with my sword.
Keep me updated as I'm dying to purchase the project file even if it's not a complete product.