Honestly, some Ultras have shown the ability to manifest at a humanoid size. The one that springs to mind is Ultraman Hikari, though Tiga also did it a few times. Then again, Tiga's weird. To be completed tomorrow.

Ultraman Name - Ultraman Cross
Ultraman Age - 900
Host Alias - Captain Cross
Host Age - 850
Special Powers - 
* Lootorium Beam/Barrage/Broadside: Cross's energy attack, Lootorium looks like some sort of gaseous gold. Charging energy on his right arm, he thrusts it out to the side before forming a -| shape with his arms. The beam isn't as powerful as it should be, due to the absence of his left arm. To make up for this, he created the Lootorium Barrage and Lootorium Broadside. The Lootorium Barrage coats his arms and legs in energy, allowing him to fling it off with attacks, effectively punching, kicking, and slashing at range. Infinitely more powerful is the Lootorium Broadside, his ultimate technique- in which he uses the entire right half of his body to charge and fire Lootorium.
* Treasure Sense- An ability valuable to any pirate, Cross knows which items in a pile are most valuable and goes for them immediately.
* Barabas Claw- a claw taken from a monster that lopped off his arm while searching for buried treasure, this hook hand is nearly indestructible.
* The Titan's Rest- Cross's pirate ship, a tremendous battle cruiser with a captain's chair large enough to seat an Ultra. He's left it parked in the desert while his crew's on shore leave.
* While the Ultras trained in the military practice a distinct martial art, Cross's fighting style is one honed in boarding parties and barfights. He fights dirty, using every available advantage to gain the upper hand.

Personality - [This would be for both Ultra/host]
Appearance - I got a picture but I'm gonna scan it tomorrow. The important part is that his head crest naturally forms a pirate hat, he's missing his left arm, and he's got a huge X-shaped scar on his chest.
BRIEF Backstory - Formerly a petty thug, Ultraman Cross got his name after taking two cutter attacks from other Ultras straight to the chest, leaving him with an X-shaped scar below his color timer. Banished from the Land of Light for his crimes 950 years ago, he's spent the better part of the last millennium becoming a pirate king. Turning his back on the Ultramen, he's fully embraced his status as a pirate- even carving his color timer into the shape of a skull. His "Host" is actually an artificial form he assumes.
Notes - [Any additional info you feel is important to the character]