(AN) In addition to writing a crossover this will also include elements for what I think might be interesting developments in Dragonball Super or just things that I think are cool. Dragonball, Dragonball Z, Dragonball GT, and Dragonball Super are all owned by Akira Toriyama. Undertale, and Deltarune are owned by Toby Fox. Please support the official release.
Sans had found where the dragon balls were located, or at least the direction they were in, but they were all in the same place, which meant that someone was ging to make a wish. If he could just get there faster he could get his wish, he could go home to his family, to his brother. He was going as fast as he could, but in the distance the sky had already gone dark signaling the dragon, he was too late. Back underground he was renowned for his ability to seemingly appear anywhere he wanted at any time, but wasn't nearly as simple as that. In order to teleport safely he had to have precise dimensions on what was there, where the objects were in the area, how far the area was, what direction the area was in, how much magical material was in the area, how much non magical material was in the area, how many people were in the area, and how many people he was traveling with. Since he only knew that he was travelling alone the best he could do was phasing forward a few feet while running, and by the time he finally got to where the dragon was, there were already seven yellow streaks in the sky and a small ship leaving orbit. He looked around for anything left, seeing three small children "What happened!?" he almost shouted. "They just revived a couple people, then they left!" the girl answered "This is just not my day." Sans said with a sigh.
"Well Vegeta, I don't think that you can use divine energy, at least not without the ritual." Whis said calmly. "I don't care, I'm NOT doing it!" Vegeta yelled back angered by the idea of not earning the power for himself. "Well then, there is nothing that I can do besides helping you refine your technique." Whis responded, almost disappointed. "Fine then!" Vegeta shouted "Take me back to earth, you can pick up Kakarot there if you want." Vegeta said with an uncomfortable grimace. "Very well Vegeta, just know that I still have high hopes for you." Whis said cooly, before tapping his staff to the ground and transporting them back to earth.
"You really want me to come!?" Goku yelled excitedly. "Yes Goku, I would like to have a student on the planet, and Beerus wants to finish his battle with you, when he wakes up of course." Whis responded. "What about Vegeta, doesn't he want to train with you?" "No Kakarot, I'm going to train on my own, to achieve a power even greater than yours!" Vegeta said, with a look of superiority on his face. "I doubt that, but good luck." Whis said before shooting off into the sky with goku. "That was cold." said a voice from behind Vegeta. He spun around and saw the Skeleton. "That must have cut 'to the bone'!" Sans said with a wink. "Weren't you using the Dragonballs to go home, bone-man?" Vegeta questioned. "Well I was going to, but someone else got to them first." Sans responded. "Well I guess since you're here, would you mind sparring with me?" Vegeta reluctantly asked. "Well sure, I've got nothing better to do." Sans responded sounding bored.
"Sorry Goten, maybe later, I have to go find my dad." Trunks said with a twinge of sadness. But as they rounded the corner they sensed Vegeta's energy rising to match whatever he was fighting, and opposing him was the unfamiliar energy of the skeleton. "Do you feel that Goten, my dad has already gotten so much stronger." Trunks said awestruck "Of course I can feel that, Trunks I'm right here." Goten responded not as impressed. Trunks was about to object to Gotens attitude, but a blue streak crashed in front of them. "Is that all you've got, I was expecting more." Vegeta shouted down. "I wouldn't push it." Sans answered. "Please don't try to intimidate me, it won't work." Vegeta said in a cocky manner. "You asked for this." Sans said with finality, before disappearing from view and reappearing above Vegeta. Dodging a backhand Sans reached out and swung his hand down. "What was that supposed to-" Vegeta was cut off by being thrown down to the ground in a spectacular crash. "What in the hell was tha-" He was cut off again as a wall of bones thrust out and hit Vegeta head on. Sans landed and threw his hand to the left. This time Vegeta turned in midair and landed into the wall feet first. As he jumped to avoid the bone attack he was hit in the side by a blast of pure magical energy. As the dust settled and Vegeta got back up, he cupped his hands to his side "GALIC" an orb of intense violet energy formed "GUN" the attack began to spark and bubble with the condensed energy "FIRE!" and as Vegeta shouted the final word he thrust his hand forward, firing the attack, the light of the sun seemingly insignificant compared to the violet light being thrown forward. Sans however didn't even flinch, instead his eye flashed a light blue, and before him appeared a gaster blaster that fired at Vegeta's Galic Gun. The ensuing struggle didn't last long, Sans' attack easily overpowered Vegeta's, pushing him back before completely enveloping him. As the smoke cleared Vegeta was revealed to be nearly unconscious and had dropped out of Super Saiyan. "I warned you Vegeta." Sans said before Vegeta fell to the ground exhausted.
"He's waking up!" the medic yelled with terror. "Well, get out of his way!" Sorbet shouted to no avail. "Ahh, it's good to be alive and well again." a callous voice said. "Now where are those filthy Saiyans?"