The tileset instantly reminded me of the original Pokémon one, and after checking part of it is actually from that original tileset. The game was not very well polished: I recognized issues we encountered with Unity for pixel-perfect game, and while not obvious to solve there are ways to improve the look of the game. It also crashed twice for me (which is another side-effect I had with Unity's WebGL export).
On the plus side, the story could become the base of a fun exploration game.