In the final level of Bastion, you reach a point where
you must choose whether to take Zulf and save him or leave him and fight the Ura yourself.
Is it possible to die after this point? Even though you still can take hits, your health bar actually goes away as does your potion count, so it's unclear whether you are still taking damage or if that entire scene is just an interactive cinematic.
In the Take Zulf branch, you actually are prompted to heal at times. What happens if you don't or are out of potions?