Hellsteeds

Unlike Fuzz Steeds, Hellsteeds are not at all docile. Being one of the more dangerous inhabitants of the Jungle, Hellsteeds are fire-breathing demon horses with a strong desire to maul every living being they find. Feeding on the bones of its victims, you can usually tell where a Hellsteed has been by the trail of flesh chunks it leaves behind. They are found all throughout the Jungle. Hellsteeds wear their skulls on the outside of their head and come pre-equipped with riding gear (which seems to act as their armor). If you can tame a Hellsteed you will have a fast, aggressive mount which will gladly attack anything you tell it to.

Doppelgangers

Disgusting, ghoulish beings who take on the form of their opponents. In their pure form they are completely useless, but as soon as they take on the form of another being they gain all of that being's power and abilities. What makes them so challenging is that you are constantly fighting yourself. Doppelgangers have been known to cause philosophical epiphanies when fighting any intellectual being.

Crawlers (Parasitic, Bullet, Rippers, Floaters)

Parasitic Crawers are half metal, half fleshy substance and 100% annoying. They eat metal and are generally only found in the Junkyard by CyberCity 404. They pose no real threat, unless you're made of metal.
Bullet Crawlers are half parasite and half sniper rifle. They generally nest in high places and feed on discarded ammo and bullet cases. Bullet Crawlers are very difficult to spot, but thankfully they have relatively shitty aim.
Rippers are slightly evolved Crawlers that resemble skeletal mechanical apes. They feed on dead wires and are known to tear apart machinery in search of them. Hence the name Rippers.
Floaters are legless, floating Crawlers that don't feed and don't really have a mind of their own. They float around the Junkyard killing anything non-metal with obscenely powerful electric shocks. They can be very easily killed, but they are usually travelling with Rippers. So if you kill a Floater be warned: There is a Ripper close by who does not appreciate your bullshit.

Bloodkin

Bloodkin are mindless Vampire Ghouls that are completely feral and travel in tribe-like packs. They have a hard time dying it seems...Unless they starve or have no body left to fight with they seem to live forever. Very fast, very strong, completely wild, super aggressive...The four inch razor-sharp fangs don't hurt either. They are generally found near the center of the jungle but a little closer to the outer edge. So in between. They only come out at night though, so you can travel with ease during the day.