Shugo Chara!
The actual MAIN MAIN character is a girl, but there are lots of leading males with epic powers! Ikuto(KYAAA~!>////<) has cat ears and epic metal claws. He can also make giant cat paws come out of his hand! Tadase(ugh...) has a prissy, frilly outfit and a magic wand that shoots what appears to be yellow jelly. Kukai has a skateboard he flies on and he can kick a soccer ball REALLY, REALLY hard and manages to beam the bad guy in the head with it. Kairi turns into an epic samurai with sword fighting awesomeness.
Soul Eater is a another good one. Soul, the main character, turns into a scythe. Death the Kid is a Grim Reaper who has a flying skateboard and two pistols that shoot compressed soul wavelengths. Black*Star is an assassin. Spirit is a Death Scythe that acts as a weapon for Lord Death, Death the Kid's father. Crona has black blood that turns into a being that comes out of his back named Ragnarok. Ragnarok turns into a demon sword that Crona wields. Crona's black blood also hardens to heal injuries. Once he bleeds, he can use every drop of his blood as a weapon by turning them into spikes that will skewer his enemies is they get too close.
And now, an epic Death the Kid pic! :)
