Long, long ago, in a deep dark forest far from civilization, beyond a towering range of...well, you get the idea. It's the kind of place a story like this has to begin...
"You're not gettin' away from me!" Goku shouted after the bear running from him through the forest, mad that he even had to do it because of his stupid stomach. Hunting animals straight up didn't bother him much, it gave him a chance to fight for one, but when he was really hungry, Goku liked to take it easy and trick his prey. He had it all planned out too, snatch up some berries, put em in a place the bear was sure to walk past then take him down with a surprise attack.
It was perfect until his belly growled so loudly animals on the other side of the mountain probably heard it. So now he had to chase his next meal, jumping from tree to tree while it kept to ground level. Luckily, Goku had something to take it down real fast. Pulling out Grampa's gift, Goku raised the staff over his head. "Nyoibo! Extend!"
Mid-swing, the pole which was almost as tall as Goku himself got about three times as long, just enough for Goku to bonk the bear over his head. It shouted something fierce, eyes bulging before it started rolling on the ground and finally smashing into a tree. By the time he got over to it, Goku knew it was done for.
"Looks like I won't be goin' hungry tonight!" He chuckled, putting the staff away and walking over to the body. Through the trees, he could see the sun starting to set, turning the green and brown of the forest into a pretty orange. It also meant Goku had to get back home and eat quick, staying outside at night was against the rules, especially if there was a full moon out. With a single heave, Goku raised the bear over his head and ran as fast as he could back up the mountain.
Thankfully, his growling stomach and heavy catch didn't slow him down too much, with the dirt road leading back home as his guide, he reached home in no time flat. Slowing down a bit to smell out of any nasty critter was waiting for him, Goku happily noticed nobody else was there and tossed the bear next to the door. As he always did when he got back home, Goku almost reverently walked up to the table Grampa was waiting for him on in the corner and clapped his hands together, smiling at him.
"Hey, Grampa! I got me some good grub! A big, brown bear! Just like the one you used to bring!" He chuckled at his Grampa, even if the old timer never talked back. Being a ball with four stars on it probably made that really hard. Still, just knowing he was here at all after the accident made Goku super happy! "Anyway, it's gettin' late so I gotta start cooking!"
Heading on over to the back of the house, Goku snatched the knife they used to skin the animals and did it to the bear as fast as he could, just like how his Grampa taught him. Then, with a big stick running through the whole bear, he spun it over the fire, salivating as his growling belly got louder and louder. The smell alone was almost enough to make him want to eat it but Grampa always told him to cook his meal good or else he'd get sick, so he did.
By the time it was all over, Goku's belly was so full it looked like he'd swallowed a boulder and for a while, he just lied on the ground, enjoying the last scent of sweet, sweet cooked bear meat. The sun was practically gone by then and the sky was in that weird in-between spot of looking kinda dark, but not night just yet. That was a good thing, he got to eat and wouldn't break the rules! With a satisfied burb, Goku's stomach shrank back to normal size and he happily walked back into the house.
"I got it done in time, Grampa!" He greeted the old man. "We're runnin' low on wood so I'll get some more these days, can't cook anythin' without it!"
Setting the Nyoibo next to his bed, Goku closed the doors shut then jumped onto his bed with a satisfying thud. "Sleep tight, Grampa!" He told the older man then unhooked the bed curtains, to make sure he couldn't see the full moon if it went out tonight. With a final, happy sigh, Goku closed his eyes and was snoring through the night in no time at all...
Several Hours Later...
Goku didn't dream a lot, usually, he just slept through the night then woke up, ready to take on the world. But when he did, the dreams were... weird, and not in a good way. It was hard to put into words, when he was awake everything looked so big, the house, the trees, the cliffs, but when he dreamed, everything looked really small, almost like he was flying over it. Except he wasn't, because he felt his feet on the ground even though he was way up in the sky! Then when he tried to grab things, it was like grabbing a fistful of dirt, except this time there were lots of trees and big rocks instead!
That was the weird stuff, the scary thing, the scary thing was the roar. He didn't know where it was coming from but it wasn't a bear or tiger or anything he'd ever heard before! When it happened, it was loud enough to literally go over all the mountains! Goku wasn't a scaredy cat, he was more than happy to take on anything, even the monster his Grampa told him to never, ever get close to it. But this roar... It creeped him out, was it him hearing the monster in his sleep? He thought about it sometimes,...
Tonight, though, the dream got weirder. It started out like the usual stuff, but then he heard a weird wobbling noise, kinda like the time he spun his Nyoibo in the water slowly but not exactly. Then he swore he felt cold, then hot, then normal again but he couldn't wake up no matter how much it bugged him. Then there was a voice, it wasn't his and definitely not Grampa's, it sounded,... nice but kinda sad too, almost the same way Goku did when he mad his Grampa mad and felt bad about it. A part of him wanted to wake up then too, to see if it was real, because it sure sounded real, except he couldn't, again!
No, it wasn't until something else happened after the voice stopped talking that Goku finally could wake up when he heard something loud, mean and nasty growl just outside the house.
Snapping his eyes open, Goku leaped to his feet and stared at the direction of the noise and there, through the pretty thick curtains he saw something that seriously creeped him out. Eyes, two big, red eyes staring right at him and snarling the second meanest snarl he'd ever heard. That's when he growled back and shouted at it. "Get away from my house, monster!"
It answered by snarling even louder and banging against the wall! This ticked Goku off even more, with a swipe of his hand, he pushed the curtains away then froze when he saw it through the mostly open window with the moonlight illuminating just enough of it to give him a good look at it!.
"A bear?!" He said until he got a better look at it. It looked a lot like a bear, similar head shape, big bulky body, same teeth, but if it was a bear for real, Goku had never seen anything like it! Its head was covered with a big white bone all over it, with red markings running across and he swore he could see bones sticking out its back!
It snarled again then bashed into the wall again, managing to crack it and shake the whole house! Goku vaguely saw his Grampa shake back and forth in the shadowed table and knew if the beastie kept on banging, he might fall off and break!
"HEY-YAA!" With a mighty shout, Goku jumped into the air, left leg outstretched and kicked the monster right in the face, forcing it to back away. While it snarled outside, Goku went for his Nyoibo then cast a final look at his Grampa in the shadows. "Sorry! But I gotta stop it or it'll break our house!"
Pushing the doors open, Goku kept his head eyes trained firmly to ground level, making sure they didn't look up. It's not like he needed to, the smell of the thing was so strong he could've fought it blindfolded without trouble. That's when he noticed the scent, how it felt... wrong. It smelled almost like rotten meat, except it was clearly alive! It was an animal, but clearly not one, meaning there was only one explanation possible!
"The moon monster!" He exclaimed, thinking he'd finally get a chance to meet the thing that killed his Grampa, broke his house and everything! This got Goku good and mad, with another shout he charged at horrible thing snarling at him, it tried to swipe at him but Goku ducked underneath then swung his Nyoibo as hard as he could, landing a hit on it. He grinned when he saw teeth flying and the monster stagger back, but it was a tough one, instead of going down or even running away like most animals did, it just went for another attack.
Goku blocked a paw swipe with his staff and felt his whole body shake from the hit. He knew and fought some tough things before out in the forest, but none of them were tough and strong like this! Instead of blocking, Goku side-stepped another swipe and brought Nyoibo down on the back of its head, then swung again at the bones sticking out its back. The skull bone cracked but the spike broke and boy did it make the monster mad! It shouted even louder then, thrashing so wildly and so fast, Goku barely backflipped away from it clawing his face in time.
He couldn't help feeling a little excited from fighting something tougher for once, even if it was the freak responsible for Grampa's death, but it didn't last long when the creep thrashed into the side of their house, almost breaking the whole wall down!
"Get away from there!" Goku shouted and slid underneath the monster, then he grabbed its belly to throw it away from his home. It wasn't easy like the bear, though, which was nothing at all, the monster was so heavy Goku actually felt his muscles strain for once and when he finally managed to toss it, it didn't exactly go as far as he wanted it too. So then Goku decided to return the favor, ramming head first into the side of it over and over until he knew Grampa and the house were safe from it.
It was worth the headache he got. The monster kept snarling louder and louder, swiping at him with Goku dodging, his guard never letting up. He smacked it around a few more times until he knew he could get a good, clean finishing shot. With another shout that sounded almost like the monsters, Goku rammed his staff right through its ugly, red-eyed head. Finally, it stopped moving and fell over dead on the ground.
"That was for my Grampa!" He said, kicking it as he pulled Nyoibo out. Before he walked away, though, something weird happened. It started to smoke, but not the kind you got from cooking, it was black... and coming from the monster's body... its shrinking body. With a stunned look, Goku stared as it... melted away right in front of him until there was nothing left it except black ooze. He blinked a few times, then pinched and slapped himself to make sure he wasn't dreaming.
With a sigh, Goku put Nyoibo back in its holster then walked back to the house, scowling at the crack the monster made in it. "Oh man, I'm gonna have to fix it again! Well, at least he didn't... stomp it... this time..."
Taking a second to think about it, Goku wondered if it really was the monster after all. When he found Grampa and their house, it was all smashed up, like something a giant stepped on it. The thing he just fought wasn't that big, though, bigger than a normal bear for sure but definitely not big enough to crush a whole house. He kept thinking about this as he walked back then froze again when he saw Grampa lying on the floor.
"Oh no!" He ran inside, ignoring the thrown over broom handles and scooping his Grampa off the ground. "Grampa! Are you alright?!"
He felt terrified when Grampa felt wrong in his hand. He'd only picked him up a couple times after finding him in the mess of his crushed clothes but Goku knew Grampa was smooth to the touch, smoother than anything he'd ever felt in his life. This felt different, and not in a good way. Still, most of the house was too dark to see in so he moved closer to the window where the moon kept shining through, that's when Goku froze and felt his heart sink for the first time since the monster almost took everything from him.
Grampa, who used to be a smooth orange ball with four stars was now just a really, really round rock.
He almost shouted at the top of his lungs and even felt tears well up in his eyes when outside another snarl suddenly came out of nowhere, followed by another one, then another one. When he looked outside the door, farther into the forest, Goku saw three pairs of red eyes slowly creeping up right towards him...
A/N: That's all folks, hope you liked it! I've got ideas for more but until real life affairs are sorted out, don't expect more. Still, I had fun writing this and hope I gave you a (good) crossover fic for once.