One day, Sonic the Hedgehog was going on another one of his daily runs in the Kingdom of Mobius. He was, of course, having a very good time. With a few clouds in the sky and the temperature just right, the Blue Blur was in his own little heaven. Nothing could possibly go wrong for him…could it?

During his run, he passed by Shadow the Hedgehog, his doppelganger.

"Hello, Sonic," said Shadow.

Sonic screeched to a halt and ran back to Shadow. "Yo, what it is, Shadow? Hey, what's with the cake?"

"There's a birthday today," replied Shadow.

"Groovy!" said Sonic. "Whose birthday is it?"

"A-HEM!" Shadow glared at Sonic. Apparently, somebody hadn't been tipped off by the blue frosting on the cake.

"Oh…" said Sonic. "How could I forget!? I must be trippin' today!"

"Happy Birthday…" said Shadow.

"Thanks, man! I appreciate it!"

"…TO THE GROUND!" Shadow threw Sonic's cake on the ground, splattering it all over the place and making it unsuitable for hedgehog consumption.

"Hey, what did ya do that for!?" exclaimed Sonic.

"Just exacting a little revenge," said Shadow.

"Revenge? For what!?"

"Hmph, you just don't get it, do you? For as long as I've known you, you've been taking everything I enjoy and ruining it for me! Now, I'm returning your pathetic little favor!"

"Aw, come on! Ya don't just chuck somebody's birthday cake on the ground just because ya got a beef with them! I mean, I've never done that to ya!"

"That's because we're not yet even. I've still got a long way to go before you've paid your debt to me!"

"I think ya need a hug, man!" Sonic attempted to hug Shadow, but got kicked in the groin. The Blue Blur curled up on the ground in pain.

"That's what I think!" said Shadow. "Enjoy your stupid cake. Hmph!" He ran away.

After a few minutes, Sonic got up and took his hands off his groin. At first, he moved quite slowly because he was still feeling sore. However, he soon got back to his usual super-speedy stride.

As Sonic continued running, he had an unexpected encounter…

"SURPRISE!" Scratch & Grounder popped out from behind a rock, holding a cake. Sonic skidded to a halt.

"What the…?" said Sonic.

"Happy birthday!" said Scratch & Grounder.

"Wait, how'd ya know it was my birthday?" asked Sonic.

"Are ya kiddin'?" replied Scratch. "Dr. Robotnik knows everything about ya! Buh-HA Ha-HAAAA!"

"OK, but why are you two bozos celebratin' my birthday? Shouldn't ya be tryin' to catch me or somethin'?"

"Hey, we're just takin' a little break!" said Grounder.

"Yeah!" said Scratch. "We may not like you, but we really like your guts, so we're givin' ya this cake! I baked it myself!"

"Hey, don't take all the credit, Klutz-bot!" exclaimed Grounder. "I helped bake that cake, too!"

"You!? You only handed me some eggs & flour!"

"But I also helped mix everything!"

"No ya didn't!"

"Yes I did!"

"No ya didn't!"

"Yes I did!"

While Scratch & Grounder were arguing, Sonic decided to take the cake from them. However, just as he was about to grab it, he smelled something funny in the cake, so he backed away and kept running.

It was a good idea, too. As Scratch & Grounder were still squabbling, the bomb within the cake went off. They weren't seriously injured, but they were quite charred and covered in bits of cake.

"Nice job, chicken leg!" said Grounder. "He got away!"

"Ah, stuff it!" retorted Scratch.