Hi-Fi Rush is a Kingdom Hearts.

Power of friendship, magic weapon, bad guys to good guys, pattern based bosses, idiot but cheerful protagonist.

Aside from that it's an okay character action game mixed with an okay rhythm game that manages to be better than the sum of its parts.
When it all comes together, it's sublime.
When it doesn't, it can get frustrating. The audio mixing can make it really difficult to stay on cue, or really easy to miss important sound effects in battle. The camera turns really slowly, which is bizarre. Visually, things get a bit cluttered too which, again, make it very easy to not be able to react to threats.

The combat flow is pretty standard character action game and gets much more interesting when you're given a parry. This does lead to some enemies getting block strings that that have a defined pattern that I don't think you can work out first time (unlike the pre-defined "duel" segments).

I played through on Hard mode, so I'm looking forward to jumping up a difficulty with my full game knowledge to see if it unlocks any complexity.

The story is all pretty standard shonen anime, but I thought the main gang of characters was really endearing and I'd be very up for seeing more from them!

In summary: It's a no brainer on Game Pass and it feels like a great deal at it's below-average RRP.