Powers and Abilities
The disease that Killer Croc is afflicted with seems to be some form of regressive atavism, meaning he has inherited some of the traits of ancestral species of the human race. His skin has hardened to the point where it is invulnerable to most forms of abrasion and even high caliber weapons fired from a distance. He possesses superhuman strength and he is stronger than Batman, whose strength is at the peak human level. A side effect of this condition seems to be that over time the primal reptilian part of his brain gains more control of his psyche. His speed, agility, and reflexes are also superhuman. He can also heal at a much faster rate than normal humans, similar to the healing rate of an actual reptile.
Croc has some experience at street fighting and wrestling, but he is not quite as proficient as Batman or Nightwing. He is a high school drop out, but has proven to be moderately capable of organizing thugs in small-time racketeering operations. He is usually hired by other villains as muscle or as a hitman, as he is at least intelligent enough to follow instructions. Croc also is very skilled at swimming aided by his reptilian genetics.
Superhuman: Killer Croc's mutated strength level is many times greater than that of a normal human. Over the years, as Croc's body continued to mutate, his strength levels increased accordingly. Sometimes, he was even protrayed as being dinosaur like, with a tail and a reptilian snout to boot.
Abilities
The Hiten Mitsurugi Ryu
Hiten Mitsurugi Ryu Do Ryu San(Ground Dragon Flash) = Giant blow against the ground, causing massive airwaves/rocks to strike enemies.
Hiten Mitsurugi Ryu Ryu Tsui Sen(Dragon Mallot Flash) = Jumps up in the air really high and then strikes down hard from above.
Hiten Mitsurugi Ryu Ryu Kan Sen(Dragon Wind Up Flash) = Lunges toward enemy using a very powerful twist of the body doing a sideways slash.
Hiten Mitsurugi Ryu Ryu Sou Sen(Double Dragon Flash) = Multiple Slashes against enemy.
Hiten Mitsurugi Ryu Ryu Kan Sen Tsumuji(Dragon Wind Up Flash Hair Spin)= Tsumuji(gyrate) involves higher speed than Ryu Kan Sen. Basically same attack but more powerful.
Hiten Mitsurugi Ryu Ryu Sho Sen(Dragon Rising Flash) = Rises up from ground, using all force in an uppercut, hitting vital points.
Hiten Mitsurugi Ryu Ryu Tsui San Zan = Same as Ryu Tsui Sen except sword is pointed down to pierce.
Hiten Mitsurugi Ryu Hi-Ryu Sen(Flying Dragon Slash) = Performed by left hand only, attack uses centrifugal force to create a powerful blow with the hilt in a persons weakness, like in between the eyes.
Hiten Mitsurugi Ryu Sou Ryu Sen(Paired Dragon Flash) = Paired attack with sword and sheath. If sword is blocked, sheath comes in and hits enemy.
Hiten Mitsurugi Ryu Ryu Kan Sen Arashi(Dragon Wind Up Flash Storm) = More powerful version of Tsumuji + more damaging.
Zantetsu = Iron cutting technique. Can use it anywhere excempt underwater.
Shihara Dori = Defensive technique in which user grabs enemies sword.
Ryu Mei San = User quickly sheathes sword, causing a sound that distorts the hearing of those with enhanced senses.
Modoshi Giri = User can cut something in half and then rejoin it together and make it seem as if there was no cut whatsoever.
Hiten Mitsurugi Ryu Secret Umbrella Techniques...
Hiten Mitsurugi Ryu Lightning Umbrella = Opens up an umbrella and spins it quickly to deflect kunai.
Hiten Mitsurugi Ryu Big Ball Smash = Whacks a giant red rubber ball with the umbrella and knocks it into an opponent.
Hiten Mitsurugi Ryu Dodge the Big Boar = Dodges charging opponent and swipes him on the back with the umbrella.
Hiten Mitsurugi Ryu Umbrella Smash = Imitates Ryu Tsui Sen with the umbrella
The Two Combo moves he uses. He uses these in his fught against Shi-Shi-O in combination, not seperately, making this combo of moves his attack that has the most moves in sequence.
Hiten Mitsurugi Ryu Ryu Tsui Sho Sen(Dragon Mallot Rising Flash) = Combo of Ryu Tsui Sen and Ryu Shou Sen. Perfromed when opponent is coming down from above, Ryu Tsui Sen first, then Ryu Shou Sen, causing double damage.
Hiten Mitsurugi Ryu Kogarashi Tsumuji Arashi (no translation) = First he starts off turning around and doing one hit, then jumps and hits again, then uses the turning momentum to go into a spin and slicing again. Spin goes vertically, not horizontally.
Now for the two most powerful techniques that Kenshin learns from his master Hiko Seijuuro in the series.
Hiten Mitsurugi Ryu Ku Zu Ryu Sen(Nine Headed Dragon Flash) = Attack learned before the most powerful succesion technique. Strikes with the sword nine times on the 9 vital points, head, right leg, left leg, right arm, left arm, between the legs, the chest, right shoulder, and left shoulder, making this move virtually impossible to block.
Hiten Mitsurugi Ryu Ouki Ama Kakeru Ryu No Hirameki(Heaven's Soaring Dragon Flash) = THE SUCCESION TECHNIQUE. Normally when using the Batto Jutsu, the right leg is placed in front of the left leg so as not to cut your leg off when drawing your sword from the left, but with this you put your left leg in front giving your attack the most power it can get, and must twist your body at the right time so as not to cut your leg off. In order to do this he must have a strong will to live. This move is actually a combo of two, because if this move is executed properly, if the first hit is blocked, then the person spins around, and slices again. It works because apparently after the first strike, the sword somehow makes a kindof vortex, sucking in the enemy, allowing the person to be close enough to be sliced again, kind of like a vacuum.