For the most part, this game provides a very tough but fair difficulty curve in having to tackle bosses with completely different control schemes per character, and they're pretty satisfying to figure out.

However, the absolute bullshit the true final boss throws at you almost deflated the whole experience for me; in the seventh and final phase, it throws a solid red indicator for a half second on a solid red background in the middle of solid red projectiles before shooting a giant lingering laser that managed to consistently drain my health every time despite figuring out the previous phases enough that I went in with near full health. After having the game crash on me on my 55th attempt (which is far from the only technical issue the Switch version has, such as random bits to even one of the endings still untranslated and the game completely freezing up on me midway through a fight), I just gave up and beat it on easy mode first try to get it over with, because it just wasn't satisfying feeling anymore to get that far and just die to garbage design like that. I legit haven't had a final boss experience this bad in a long time.