Thanks for the feedback. Glad you enjoyed some of the touches and features we implemented. As for the UI bug I am not sure how you encounter it. But I think it's a Sorting Order bug, where all the UI is in the same layer and you can click play while having the option menu open and it bugs. Thank you for the catch!! We will keep that note so we do not repeat this issue again.
As for the audio indication for attacks and the health bar for enemies, we ran out of time and could not implement it. It came out in the discussion we needed audio for attacks, being attacked, etc... when we were about to submit the project, but we did not have time. We will make sure to keep that also noted for future projects and improve from here and out!
Thank you very much for playing our game and giving feedback!!