The Wihta

This is a legendary species from the most ancient past of Karda Nui.

Known to be very wise as it ages, it can go over all sorts of terrain. Yes, even the swampy areas. How? Its back feet have air pockets. So, by lifting its front legs like so-

-it has unlimited access to all of Karda Nui's floor.

The Wihta, proving to be nuisance to the Makuta, were hunted down, and eliminated.

Cahndar 4.0 and Zendak

This is Zendak. scourge of downtown Makuhero City.

Wanting to prove himself a "tough guy", he punched a high tension box and melted his arms down by accident.

he then ripped the armor off of a hero (i.e. Rocka) and decorated himself with it.

Who can save us?

Meet Kathrine Cahndar, 4.0.

 She is absolutely positive she will take down Zendak, and she has an awesome sword to prove it. 

Let the battle begin!

Diirect 4.0

Yeah... this is Kevin Diirect, 4.0.

Check out his weapon!

He wasn't like this at first, this is before.

So they improved him, making him WAY more awesome. (By adding toxic blasters, on his feet and hands, and a supersonic fan blade.)

Zib  thought "why not fight fire with fire?" and assigned him to Meltdown.

His blade could help against Meltdown's whip.

From Hero Factory:"You're welcome."