i gm-ed this today in my ttrpg club and it was a resounding success! over the course of like 3 hours of playing and 4 challenges (that i just counted up to 6 successes each) my 5 players only lost 2 characters, got genuinely invested in their arcs, created tragic yuri, and then "beat the game" by changing the genre from a grimdark to Sonic the Hedgehog to beat up the Dark Lord with the power of friendship.
seeing that Aloofness was essentially health i also made up some mechanics in the final battle where the enemies got to counter roll at 1 upgrade and with 4-6 give a character some aloofness, so i'm not sure i GM-ed correctly, per say, but everyone had a catastrophic amount of fun. This is a brilliant and fun game!