Thank you so much for taking time to play our game and leave feedback!
We wanted the game to have some inventory management elements and increase the motivation to upgrade your inventory, the items do stack inside the cave but backpack space it limited.
An outline would have been an interesting way to highlight the items! We will have to experiment with that down the line. We didn't realize how subtle the sparkle animation would be until we were down to the wire but we will work on improving in the future!
Absolutely on the tutorial! Ideally that first world was going to be our tutorial, and we should have prioritized that earlier in the week... but we plan to add it after the Game Jam.
Thanks again for taking the time to leave thoughtful feedback, we want to continue working on the game and feedback like this is invaluable! :)