Fourth season of Teekyuu series.

A new cast of characters take on the continued battle between good and evil. Ginga, our hero, and his group of loyal friends take on a dangerous group called the Dark Nebula. The Dark Nebula’s sole mission is to take over the world and unleash their evil upon it; but before they can do so, they must destroy Ginga as he is the only person that’s strong enough to stand in their way. The plot thickens as friends become enemies and enemies become allies. Everything starts and ends with Ginga as he struggles to find the strength to defend his world and the honor of Beyblade. (Source: Beyblade.com)

Second season of Uchuu Senkan Tiramisù.

Waking up transformed into a beautiful girl might be the stuff of some guys' fantasies, but when the suddenly effeminatized Natsuru is informed by a stuffed tiger that he's now a Kampfer, a mystical fighter who has to fight other Kampfers in female form, his life becomes a living nightmare! Putting aside the obvious "plumbing" issues, Natsuru's best childhood friend turns out to swing the other way and SHE has a crush on his new female body. Not complex enough? Natsuru's school has separate sections for boys and girls, so he and she are now double enrolled. The rumor-mill has it that he's dating herself. And there are other Kampfers attending the school who want to take her out, and he's not sure which ones mean "on a date" and which ones mean "permanently." Oh, and did we mention that some Kampfers use swords and guns?! Hormones, fists, and other body parts will fly as the daring, new gender-bender defender must become a contender or die! (Source: Sentai Filmworks)