We really wanted to make a stretch goal to add UI indicators to accompany some of the abilities, but due to time we weren't able to get that done before the end of the jam. Same with the different mouse anims, which would have needed to be redrawn for all actions. We definitely could have made our lives easier by starting with a blank mouse anim and then adding individual accessories based on how many he had, but I fear we didn't catch that soon enough.
Thanks for the really good feedback, and for catching that bug as well! I noticed that bug appears sometimes through playthroughs (I'm still not sure what causes it to glitch), but we'll add that to the known issues section of the page.