Freeza's and Coola's Transformations
Some members of Freeza's race have been shown to possess the ability to transform into several forms, each holding different power and speed capabilities. Over time, Freeza's power became so great that his body could not comfortably contain it, and a series of physical transformations were developed to limit his actual strength. While other beings in Dragon Ball Z transform to increase their power, Freeza transforms to control and contain it. His true form is his fourth form, with each of his other transformations meant to restrict his power and conceal it from his enemies. Freeza even says upon transforming to his second state that he has a harder time controlling himself and his power due to the immensity of his current strength. That would suggest that the second and third forms are mere physical augmentations which would allow Freeza to build enough strength to revert to his true form. While changing shape from his "first-form", each alteration builds on the previous.
In all, Freeza demonstrated four transformed states, each with increasing power (some larger than others and each resulting in different physical attributes). Freeza may also use these transformations to purposely decrease his power in order to torment his opponents by giving them a false sense of hope. They are all capable of surviving even the most horrific injury and are able to survive even in the vacuum of space.
Coola as an extra transformation learned to go beyond his brother's. Originally, Coola merely told Goku that he had one more transformation than Freeza.
FIRST FORM (DAI 1 (ICHI) KEITAI)
In his first form, Freeza is a relatively short humanoid, albeit with a large chestnut-shaped skull with two horns that protrude at near 45 degree angles. He also has a purple tail with a spiked end, which is relatively thick in width, able to crack the ground when slammed, as well as having three talon-like toes. He wears the same upper-body armor and shorts that many of his subordinates (including the Saiyans) are shown to wear.While traveling, he often gives the appearance of weakness by exclusively using his hoverchair for transportation, leaving his henchmen to do his "dirty work". In this form, Freeza appears to be very small in height, which is shown to be true on the rare occasions that he emerges from his hover-chair. While in this form, Freeza is shown to have more than enough power in this form to kill King Vegeta and to blow up Planet Vegeta, both with ease.His power level has been stated to be 530,000 by himself in the manga. And we show the horror's when Vegeta see's his ability since his right-hand man, Zarbon did transformed. Well see...SECOND FORM (DAI 2 (NI) KEITAI)
His second form is similar in appearance to the first, except much larger, both in height and muscle mass, which can be clearly seen on his chest and stomach areas. Freeza claims to have at least doubled his power in this state (Freeza boasts that his fighting strength is "over a million" and he won't be as gentle as he was before). He also grows longer horns, which now instead of protruding sideways from his skull curve sharply upwards into near right angles. His armor cannot contain his form and shatters, leaving him with a new, white natural armor covering his chest and shoulders. More likely, this form is based off his father, King Cold. In the English anime, this form is referred to as his true first form, probably because of his father's form. According to Freeza, this transformation's power level is over 1,000,000. THIRD FORM (DAI 3 (SAN) KEITAI)
Freeza's third form is again more brutish, with an extremely elongated skull. His facial features contort and change, with his nose melding into his mouth to form a crude beak. His original horns recede and are now white in color, erupting in pairs along the length of his head. Two pairs of spikes grow out of his back and curve upward somewhat, and the armor on his shoulders fling themselves outward like shoulder pads. He walks and stands with a slight hunch, as if the strain of supporting his head was too much for even Freeza's own body to bear. Freeza stated that no-one had ever seen this form before (which leads us to believe that Freeza, even only in his second form, had been more than enough to trample over any fighter he had come across in the universe). Although powerful, Freeza spent less time in this form than in any other form; spanning only one episode in the uncut version. In the FUNimation dub, Freeza's voice in this form is essentially the same as his second form with a voice effect added to give him more of an alien-like voice (sounds like his first and second forms together). For the Season 3 Box Set this effect was removed making him sound exactly the same as his second form. However in the English version of Kai, his voice seems to be much deeper.
FOURTH FORM (DAI 4 (YON) KEITAI)
FREEZA
While the Japanese title of the manga refers to this form as "Super Freeza" this form differs from his previous transformations, Freeza instead regresses, with his former form cracking and shattering like a shell, becoming a short, lizard-like, almost harmless looking creature, his horns and spikes disappear and his physique becomes streamlined. His skin becomes pure, solid-white with purple sections on his head, shoulders, forearms, abdomen and shins. All injuries taken in other forms are healed.This form is the one that Freeza was born in, being his "true" form. In fact, according to him, the only ones who have ever given him pain in this form are Goku and "his loving parents". The similarity that this form bears with his first form may hint that if need be, Freeza can regress to his first form directly, as a means to suppressing his massive power. This is the form that allows him to reach his full potential. He is also able to attain 100% strength in his final form, greatly increasing his muscle mass. At 100%, this is literally the peak of Freeza's potential and the maximum amount of power his body can output; his muscle mass becomes engorged compared to his previously sleek frame (In the manga he merely had a slightly bulkier muscle structure, while in the anime his muscles become massive and engorged). With absolute strength, he was able to make Super Saiyan Goku struggle during the final battle on Planet Namek. However, due to his prior damage and the strain on his body, he was not able to fight at maximum capacity for long, slowly weakening. Goku also said he was holding back to test the limits of Freeza's full power. COOLACoola's version is different from his brother's. He has purple skin with a blue section on his head and wears a white armor, with the white forearms and shins on him. However, Coola prefers to stay in this form, and not use his first form when out of combat. Coola is not only stronger than Freeza when in this form, but has much more control over it, and may explain why he could surpass it. After Goku powers up and proves to be stronger than Coola, he decides to use what is thought to be his maximum level. Coola's muscle mass and strength increases greatly, however he still proves no match for SSJ Goku. So that's why he goes one step beyond what his brother Freeza ever could.
FIFTH FORM (DAI 5 (GO) KEITAI)
COOLA: SUPER EVOLUTION
The fifth and most powerful form is only seen being used by Coola, in which refers to this state as "Super Evolution" who uses this form against Goku, and nearly destroy the planet. He increases dramatically in size, speed, and strength; four horns grow to form a crown atop his head as spikes form on his forearms, and he now sports a face-mask of sorts, hiding all facial features except his eyes, which are now red without pupils. It is notable that he possesses an extra transformation. Although Freeza used his transformations to suppress his power, Coola utilizes a way to actually enhance his power through transformation, developing a powerful, extra form. However, this form was still no match for the power of a Super Saiyan. It was then that Coola realized that Goku was the Saiyan child he had allowed to escape nearly three decades ago, and that in scolding his brother and not lifting a finger he had been far too soft himself. After this, Coola incinerates in the fires of the sun.
FREEZA: ULTIMATE EVOLUTION
Another form is A state achieved by Freeza in Revival of "F", that is referred to as "Golden Freeza", which is also known as "Ultimate Evolution". Freeza attained this form during the time he spent four months training for his invasion of Planet Earth and revenge against the Saiyans.
In this state, Freeza's skin turns dark lilac on his face, hands and feet and he gains golden armor that covers most of his armor which consist of dark gold in his arms and legs, lighter gold in his torso, tail and head. It is also missing his purple plates on his shoulder. His aura changes, becoming fiery similar to that of a Super Saiyan God.
MECHA FORM (MEKA KEITAI
FREEZAPhysically ruined while caught in Planet Namek's explosion after his defeat, what remained of the still-living Freeza was salvaged and rebuilt with cybernetic enhancements by scientists under the order of King Cold. The whole of the lower half of his body and right side of his face was replaced with scarring and metal accouterments covering what little was left of his organic self. These enhancements allowed him to exceed the limits imposed by his fully organic form, though by how much or in what ways is unknown. In the original manga, Gohan mentioned that he was nowhere near the power he displayed against Goku, but Vegeta said he was much stronger than before. In the PS2 game Super Dragon Ball Z, a new design for Mecha Freeza was created by Akira Toriyama which had a rocket launcher mounted on his shoulder. In the Remastered Box sets, this form has a slight mechanical sound to his voice. Freeza goes to Earth with King Cold to get revenge on Goku and to destroy the Saiyans, but Trunks, a boy from the future, stands in their way. It can be guessed that in this form, Freeza's special moves and fighting style are about the same as when he was in his final form. Thinking him dead, both father and son are stunned when Mirai Trunks fires a Burning Attack out of nowhere. Fuming, Freeza becomes oblivious to his opponent's position, and is surprised and sliced in half by the Saiyan youth before being cut to pieces and vaporized in an effortless blast for good.
After his death, Mecha Freeza was trapped in an coccon in Hell guarded by the Angels of Hell. Upon revival by Sorbet and Tagoma, his remains (after being sliced by Mirai Trunks) were placed in a regeneration vat, reverting back to his first form.
COOLA
After blasted into the sun, Coola's remains float around in space and eventually fuse with the Big Gete Star, a giant machine planet. The Big Gete Star revives Coola by finally fusing with his brain, eventually allowing Coola to take control. Coola set a course for New Namek, intent on draining the planet and using the Namekians as fuel for the star. Dende, learning of this horrible news, calls to Earth's warriors for help; The Z-Senshi then travelled to New Namek, ready to assist it's people. Upon arriving, they find many robotic beings known later as Cyclopian Guards, as well as the revived Meta-Coola, now in a wholly metallic and enhanced body. Stronger than ever, he is able to easily repel Goku even as a Super Saiyan, and had it not been for the unlikely appearance of Vegeta, Goku most likely would have been killed. However, even the two Super Saiyans run into difficulty handling Meta-Coola; the nano-machines that made up his body would instantly detect and repair any defect, and make it so that defect would no longer hinder the "new-and-improved" version. Only by working together in a joint attack would Meta-Coola finally be destroyed. Vegeta shows up and joins the battle, and they soon dispose of Coola. However, the Big Gete Star housed an army of Coola clones. Outnumbered and drained of energy, Goku and Vegeta are captured and transported to the Big Gete Star's core to be used as energy to power it to create an army of Metal Super Saiyans. As Coola is leeching their Super Saiyan strength via strange wires, Goku and Vegeta regain consciousness and release all their Super Saiyan energy to the wires, overloading the system. They then blast the true Coola with the last of their energy, causing his ultimate demise as the Big Gete Star explodes in New Namek's orbit.