I only played JC3 but the player is basically invincible - the lack of a health bar and the quick recovery lean into the fact that the game isn't trying to be serious, but instead lets you have fun messing around with stuff. When I played I was mostly just trying to do fun trick shots/find ways to do fun nonsense with the phyisics engine. A few of my friends and I had a fun time trying the max out the random task scores (free falling the longest distance, grappling up the most, etc) without looking at online strategies