I’ve been thinking about boss fights in platformers. Mostly because I just played Effie, a 3D platformer whose boss fights… kinda aren’t boss fights.
In Effie, you play as young warrior Galand cursed by evil witch Melira. Melira is the villain for the whole game and shows up for a boss fight at the end of every chapter. But you never fight her directly.
Instead, she hovers menacingly nearby while you deal with waves of normal enemies that she’s apparently summoning and/or traverse a hazardous platforming course. Melira’s only direct contribution to the fight is a telegraphed area-of-effect attack you need to avoid periodically. She does get a health bar, though - sometimes you deplete it just by defeating her summoned minions, other times by reaching and activating levers that trigger hazards she just happens to be in range of - and once her health bar is empty you win and (except in the final fight) she retreats. (The most perplexing encounter has you damage her by pouring wine on her and then when she’s had enough she escapes by diving into the vat of wine.)
So, okay. Is this a boss fight? It’s narratively framed as one. It’s a climactic chapter-capping encounter with the game’s antagonist in which she tries to kill you and you fight back until there is a clear winner and loser. And it’s also mechanically framed as one, challenging you to use your accumulated combat and platforming skills in a high-pressure gauntlet. The only thing I can point to that makes it not a boss fight is that you never really fight the boss - the encounter still serves every other purpose of boss fights I can think of.
But I think the fact that she doesn’t engage you directly undercuts her as a villain. She’s much less threatening if all she can throw at you is an easily-avoidable area attack and things you’ve defeated many times before. She’s much less impressive if you can compel her to retreat just by defeating a bunch of other enemies or if she repeatedly positions herself exactly where she needs to be in order to be vulnerable to triggerable hazards.
It’s normal for bosses in platformers to test you on combat and platforming skills that you’ve learned and practiced earlier, and thus in a sense not actually provide anything new and unique. Especially if the boss is supposed to be much more powerful than you and it would be silly to let you attack them directly. But I think it’s a lot more satisfying if the game finds a way to frame the conflict as a direct battle, even if you can’t use brute force.
I find myself thinking, for example, of Klaww, a boss in Jak and Daxter: The Precursor Legacy. Klaww is gigantic and you can’t just, like, walk up and punch him. So the fight is mechanically a series of platforming challenges in which you avoid Klaww’s thrown boulders and navigate platforms suspended over lava to reach him, where you don’t damage him directly so much as cause him to stumble and drop a boulder on his own head. It’s not especially cathartic because Klaww himself hadn’t been built up as an emotionally-significant antagonist - he’s just a gate you have to get through to proceed to the next area. But he still scared me the first time I played and the fight is clearly framed as you outmaneuvering a much stronger foe. I wish fighting Melira in Effie had felt that way.