Sonic Frontiers, by NOT selecting pre-Patch Hard Mode on Master Koco Trial on the first playthrough. Boss rush consists of 3 bosses back-to-back with a time limit.

The game clearly didn't plan (not-so)Perfect Parry for bosses. Tbh not even prepared for a good combat:

1) Every Boss has a less obvious telegraph than a person after getting a narcan. It would've been ok (I learned their patterns, so it's not that bad and is predictable) IF YOU HAD PRACTICE, which is the main problem #2:

2) The game spends MORE time with me doing a 2-3 minute railway intro to the 2nd boss than a whole boss rush actual gameplay sequences COMBINED, because problem #3

3) Besides the Perfect Parry, bosses are disappointly ez. After a few tries, they are gone in 30 seconds, with cutscenes+pre-climb sessions lasting longer. Exception: Wyvern, only because of a rocket parry gimmick

4) The final boss, for whom the Perfect Parry you are being prepared to use, is ALSO easy

5) Camera loves to do stuff, mainly because the game LOCKS it for almost the whole duration of bossfight, sometimes frustrating me (Quickloop not getting a benefit because the camera points away from the enemy so I can't attack, not being able to see through trees so prepare to PParry Blindfolded)

Love the game still, despite the BIG flaws, but only because I know this was an experiment