Video game bosses aren't just designed to be a bit more formidable than the average enemy. Their purpose is to make the player use all the skills they've learned up until that point and hone them effectively against these arduous adversaries.
A great boss fight isn't just entertaining. If done right, it can be the highlight and a cherished memory. Anyone who played Shadow of the Colossus remembers the thrill of scaling the final Colossi. Battling Psycho Mantis in Metal Gear Solid sticks with players since it was the first time many people had a meta experience while playing a game. Anyone who managed to beat Mike Tyson in Punch-Out!!! felt like a god.
Of course, there is the other side of the coin. Sometimes, a boss fight can be so underwhelming, they can ruin the entire experience, even if the rest of the game is great.
There are all sorts of reasons why boss failed to make an impression. It could be because the enemy was too easy, repetitive, unfair, glitchy, or forgettable. Whatever reason, these inadequate bosses were the only flaw in an otherwise perfect game.
10. Aurora Unit 1313 - Metroid Prime 3: Corruption
The Metroid Prime games are consistently praised for their stunning visuals, eerie atmosphere, fluid gameplay, and gorgeous score.
But these first-person shooters also received a fair amount of adoration for their glorious bosses. Not only do the games have a vast array of creative bosses, each title concludes with an epic brawl. The titular character of Metroid Prime is among the best bosses ever. Fighting Samus Aran's evil twin, Dark Samus, in the climax of Metroid Prime 2: Echoes was a huge moment for any fan of the series.
So, when it was announced Metroid Prime 3: Corruption would conclude the trilogy (at least, for the time being), fans expected the showdown to be one for the ages.
Instead, the last encounter is against... a robot tentacle thingy. This enemy is so forgettable, most Metroid fans can't remember its name, appearance, origin, or fighting pattern.
What's more frustrating is this problem could've been easily fixed. Instead of battling... whatever the hell this is, the final boss should've been Ridley, who Samus fought earlier in the game. Considering this cybernetic pterosaur killed Samus' parents, it would've made more sense for Ridley to serve as the Corruption's final antagonist rather than some random machine.