Alrighty:
Initial Charge, Automated
~Charging vulnerability: In order to launch the Ki blast at the targeted opponent, it would have to be charged. Charge length approximately that of Gallit Gun. During the charge, the player would be vulnerable to any form of attack
The Ultimate Sacrifice attack would be performed through Adv. Melee, visually relative to Head-Ons in ESF. The player would use the attack by selecting it with the number keys, they will then target an opponent, charge it, then launch a Ki blast at them.
Automated Attack Sequence
~Attack vulnerability: During his leap towards his frozen opponent, Vegeta could possibly be vulnerable to melee
The opponent will become aware immediately as they're hit with the blast that would deal somewhere around 3 damage, they will then be frozen in place, at that point Vegeta will leap at them, engaging in a Head-On---An invisible isolation barrier will appear around the two players(confining ANY sort of damage released within its space), Vegeta will throw some punches and kicks at the opponent that will deal 5 damage a piece which I suppose could be blocked if done quickly before the engagement, Vegeta will then leap back, clench his fist-raise his right hand and begin powering up, which will prompt a series of arrow combinations that the opponent will have to match, such as; Up, Left, Down-Right, Up, Random, Random, Random, Up, Left, Down, Up-Right. The arrows' difficulty level & speed at which they appear would vary by the amount of Ki used initially to perform the attack, and/or how much Health/Ki the opponent had initially(100% Health/Ki could possibly slow the arrow rate down, as naturally their defenses would be higher). If the opponent matches the first set of arrows flawlessly, they will be randomly redirected to the attacker---if the attacker matches them, they will then again head back to the opponent in random order.
~If the attacker chooses 1 or more of the arrows incorrectly then the opponent wins
~If the opponent chooses 2 or more of the arrows incorrectly then the attacker wins
The attacker wins:
Vegeta converts his Ki into a gigantic explosion, killing the opponent instantly
Vegeta's Ki depletes
Vegeta's Health drops 20 points of what it was
Vegeta turns to a "solidified ash"(Thanks, Ravendust) for 10 seconds, becoming vulnerable to any kind of attack, a literally breakable character
The opponent wins:
Vegeta's Ki depletes
Vegeta attempts to explode but fails, the opponent will then break Vegeta's Ki barrier, and use melee to smash his skull in
Vegeta's Ki is depleted, therefore damage received would possibly be 2x greater
Possibly overused if implemented? This could be considered Adv. Melee with a bit more of an edge, and almost a lose-lose situation for the attacker. But, this is a modification based on Dragon Ball Z, and so is this suggestion. Go figure.
As for the Energy Rings, the only thing I'd suggest is that its charge rate is that of the Renzoku, and cannot be guided and only physically restrain a player for 2-3 seconds, giving the user some time to perform a melee maneuver, energy attack, escape or whatnot. I guess it's pointless, but during the Majin stage it could replace Vegeta's Renzoku, which is equally pointless.