Smash has two super forms; Super, and Ultra. High Tension is a powered up state, which could be considered a Mini/Pre-super form. He never would have achieved High Tension if it weren't for his super form, yet he learned several techniques from the use of High Tension that he was able to implement into his trio of actual super forms.
High Tension is a state of powering up using one's own energy within them. Smash has fully mastered High Tension, and is able to freely transform in and out of it at will with little consequences. He has a second stage of High Tension, (also known as High Tension MAX or Completed High Tension.) which is much like the initial High Tension before he learned how to control it properly. He can only maintain it for a few moments before he completely exhausts himself.High Tension's first stage turns his fur into a sky blue color with a hint of lime green in it. His skyblue aura hides it, though. This state allows him to perform certain abilities that he wouldn't have been able to do otherwise. Most notably his ability to create a blast of energy at any point of his body, which has served to be useful in both offensive and defensive situations. He can also use his aura to force people and objects away.
The Completed High Tension is even more powerful, but still not as powerful as regular Super Smash. In this state, he is entirely lime green, with cyan stripes on his arms and legs-foreshadowing his third and final stage of High Tension. His abilities are overall better than before, but he gains nothing relatively new from this upgrade. He burns up more energy in this form, like he used to in his previous stage. He can maintain this form longer than before, but it still doesn't last too long if he keeps it up. This is why he tries not to use it unless needed, or if he's going for a finishing move. If he lets this form go on for too long, he'll subconsciously revert back before he puts himself in danger from burning up too much energy. If this happens, he'll suffer from extreme exhaustion.
Even after unlocking the potential, Smash still spent an entire month trying to tap back into it.
Super High Tension is essentially what happens when Super Smash taps into his High Tension state, or when Smash performs a Super Transformation while in High Tension. It is all around a very powerful form that could potentially increase his strength ten fold. However, it was very quickly dismissed as impractical, as the Chaos Energy empowering his super form conflicts with his focus on tapping into his own life energy for High Tension. In order to maintain control of both powers, he would have to be so focused on holding them together that he wouldn't be able to put it to any good use in a real battle. One mistake and he might revert back to normal entirely. It would only be useful in dealing a finishing blow on an immobilized target.
Super SmashWith the power of the Seven Chaos Emeralds, or something of equal power, Smash is able to transform into Super Smash. His power increases greatly, his jumping capabilities are incredible, and he floats gently downward like a feather. He can also hover just above the ground, or glide through the air, but can't actually fly. His fur turns gold in this form, and his eyes become cyan. Despite that, though, they appear as green, due to the golden aura surrounding him. Through experimenting with this form, he was able to achieve High Tension for the first time.
After his training with Micheal Aungel, he was able to perform the same unique abilities from High Tension in his regular Super form. It's far more effective now, since the energy is not his own. He is free to burn it up as recklessly as he wants with little consequences other than depleting the form. He faces very little withdrawel from reverting back to normal in comparison to High Tension.
Smash has one more form that few people have ever seen. With the power of the Seven Super Emeralds, the powered up versions of the Chaos Emeralds, or something equal to that amount of power, Smash is able to advance to his most powerful form: Ultra Smash. Like Super Smash, His fur is golden, but he also has green stripes on his arms and legs, and a green aura surrounds him. What's more, his hair grows out longer and wilder, becoming spiky and discheveled, and two large spikes grow out his knuckles on each hand. His power increases dramatically compared to Super Smash. This is the only form that grants him true flight. He isn't quite as fast as he normally would be, but he makes up for it with raw power and great durability. His energy based attacks aren't as effective as his Light form's, but they are still quite powerful. Though his powerful finisher, Divine Fist, is an exception. Its power is far beyond anything he had ever, and ever will dish out. An attack this powerful would destroy his own body, effectively becoming a sacrifical attack.
There is a very short (and very old) video clip of how he transforms into Ultra Smash. He first uses his own strength to go into his High Tension state, then he uses the power of the emeralds to go super, and then he slowly grows longer hair and spikes before completing the transformation with an incredible blast of energy. And this is just the shorter version. The transformation is actually longer than that, but due to the RPGMaker battle animation limitations, this was as long as it could be made. Though a longer version is in the process.
This form only appeared once in one of the many Lost Episodes. Mega Smash was a powerful transformation, second only to Ultra Smash. His color changed to green, and he had incredible flight power. But what was really striking about this form, was that he grew nearly twice his original size. The form was never actually used in battle, as the enemy in question fled upon seeing it. It was more or less used as a threat.
Exactly how he transformed into this is unknown. The Super Emeralds may have been involved somehow, but that would have changed him into Ultra Smash, instead.
A form that barely anyone remembers. He had been gifted with a "Chaos" form from someone else in an RP on an SRB2 netgame. Once again, he was green; A sort of pale, dull shade of green in contrast to Mega Smash's bright green color. In this form he was able to use just about as many chaos powers as he could think of. However, he wasn't very knowledgeable with them, so it didn't really change much.
The form was dropped sometime later. He didn't really have a need for it, anyway.
Ultra Light Smash
Now known as Light Smash. Basically, Ultra Light Smash was the same as it is today, except more powerful than Ultra Smash. (In fact, Ultra Smash wasn't even as strong as it is now.) It was supposed to be an awesome, past the limit of final super transformations. It ended up being pretty godly, so I toned it down. But even after that, the name still made it sound more powerful than it was. Finally, it got a make over and turned into regular Light Smash.
Light Smash was, for a time, the most powerful level of High Tension. The requirements were essentially that of a Super Saiyan's first transformation, and I didn't really want that. It also debuted before High Tension, heavily implying that Smash had already held great power within him from the start. While that was an interesting concept, I didn't want that. Light Smash didn't show up enough to be really relevent anyway.
One could argue the same thing about Ultra Smash as well, considering that the only RP's he showed up in became non-canon. I'm still actively trying to find a use for him.
Dark Ultra Smash
Probably the most commonly used of the scrapped forms. This was Smash's dark form, which unlike the name implied, was not as powerful as Ultra Smash or the opposite of Ultra Light Smash. Though in terms of activation, it kind of was the opposite. Dark Ultra Smash's fur was dark blue, and his eyes were blood red. The color of whatever clothing he wore also darkened. This form was pretty much powered by his hatred, somewhat like Darkspine Sonic. His attitude changed completely, as he turned cold and ruthless.Eventually, he ended up being able to control this form quite like his current High Tension state; in that he could go in and out of it at will. It did sap a lot of his energy from him, too. During it's final stages, Dark Ultra Smash was actually one of the most tolerable out of all the scrapped forms before it joined the others. That's why it's possible that it may come back again in some way, with a whole story arc surrounding it. It's still just a possibility, however.
Dark Ultra Smash reappears in Splice The Hedgehog as an optional boss battle in a bonus dungeon.
Dark Shadow Smash
This was the dark equivalent of Ultra Light Smash. Dark Shadow Smash was completely black with extremely long spikes on his knuckles. Even his shoes grew spikes. He was always surrounded by a pitch black aura, and his power was immense. Unlike Dark Ultra Smash, where he had control over his form, Dark Shadow Smash was completely berserk and attacked anything that moved like a wild animal. He was considered to be "unstoppable" because no one could even approach him in this form.
This form was scrapped before D.U Smash, seeing as it was too powerful and the requirements were virtually unobtainable unless some grave, massively story-changing events happened.
- Arc Aungel was the name of a character belonging to E-113:Xi. The character was eventually changed into Micheal Aungel, whose sole role was to train Smash during the Cosmic Championship. It is unknown if he will make any other appearances in the series.