Featured In: Metroid Other M (2010)
Other M was an interesting game, and some aspects of it were great. Particularly the fact that they surprised us not once, but twice with bosses that we never expected to see again: Phantoon from Super, and Nightmare from Fusion.
The Nightmare appears just before the Sector Zero entryway and attempts to destroy Samus using its gravity manipulation. This is essentially a 3D version of the fight in Fusion (which actually comes after Other M chronologically), so it was a great bit of a nostalgia rush. Once you've destroyed its mask, it's true deformed face is unveiled and it crashes to the ground. Of course, when you re-enter the room it gets back up for round 2, forcing you to destroy it once and for all (til it comes back as an X-Parasite in Fusion).
At the end of the game you are told that the Bottle Ship (where the game takes place) is being destroyed, so you head back to quickly grab something important (Adam's helmet). Who should stick his ugly mug in front of the viewport? Phantoon, that's who. His fight, unlike Nightmare's, is quite different from his original appearance. He attacks through the glass with spectral hands and fire, and you have to shoot his single eye more than a few times to take him down.
Other M has its flaws, but their inclusion is definitely a pro in my opinion. Now the score is Nightmare/Phantoon 0, Samus 2.
10) Kraid (Super Metroid)
The Kraid fight is one that is very memorable, and fun. You have to fight this huge dragon looking monster while he shoots sharp things out of his stomach at you. It's pretty sweet, and if you slip and fall, you fall right into a pit of spikes! Sounds fun doesn't it. Don't worry its not really hard at all, but it is one that sticks with you as you play through the entire series. That's why Kraid is number 10.