5.2's big feature will be difficulty modifiers. You can choose between Easy, Normal, and Hard mode which changes level layouts. On top of that, you can also change the amount of hearts you start the level or respawn with, and you can set the maximum number of hearts you can have too. Setting the maximum number of hearts to 0 means you die in one hit no matter what.
The pity star will show up if your minimum hearts are below 10 (and of course if you have hearts enabled at all!)
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