Hey Leo,
Thanks so much for playing and for your excellent feedback. I'm definitely hearing that the game is challenging-- I may have to make some balance changes to the difficulty in a future update! I would definitely like to add a more obvious notification for the Ultimate, too. As far as boss health, still balancing that, too. More powerups will certainly help with that fight, as well as getting there ASAP so he's not as strong. I really appreciate the feedback, thank you!