This is a muscle growth series focusing on characters from the entire universe of Sonic the Hedgehog, including the less known ones.

Description:
A week after the loss of his fellow freedom fighters, Guntiver the Artic Wolf was working on another stolen Egg submarine, stationed on a newly built concrete pier, replacing broken parts and repairing functions within, all assisted by Meropis City guards and several volunteering citizens. Although depressed, he remained determined to get his friends back somehow and someday. The now-muscular Sealia Seal had been secretly watching the work and decided it was time, and emerged down into the sea.

Later at night, Meropis workers were about to conclude their shift and leave to their temporary shelter while Guntiver was about to sleep inside the sub, when muscularized warriors Flip Penguin and Augustus the Polar Bar led a good-sized horde of Northern Ocean warriors and charged towards the unsuspecting workers. The Artic wolf remained unaware of the commotion outside until he noticed red flashes going through the sub portholes. Horrified at his friends doing the dirty work, yet eager to save his workers, he ran to exit via its sail (topmost entrance), but something as hard as a meteor struck into the sail, pushing him inside and further. Guntiver quickly recovered from the attack and was shocked to see his fellow freedom fighter Erma Ermine now bigger and more muscular. The evilly smiling ermine then gave chase around the interior until Guntiver tripped over a thick wiring.

As Erma approached Guntiver closer, she instinctively received the red-glowing stone hard thrown through one porthole, much to the wolf's confusion. As the said stone emitted more radiation, Guntiver began to feel a series of muscle pain and stings until he grew up to become as one as another big and muscular warrior. Newly filled with rage, Guntiver went on a feral rampage, scratching and smashing inside the submarine, until he barged into a strongly enforced hatch. At the same time, all the ambushed warriors were down to five backed into a corner, as the rest were also transformed before Guntiver. With that said, he came out of the Egg submarine and approached the five with the red glowing stone.

While this could have been done silently, as the pier was slightly far away from a large iceberg, serving as the temporary shelter for the Northern Ocean refugees, Pearly the Manta Ray was on the well-carved balcony overlooking the icy seas when she discovered something off in the distance. Consequently, King Puff, leading the refugees, was alerted about this and dismayed at the state of Guntiver, and prompted an immediate evacuation to who knew where.

Mobian Muscle Growth:
Speedy (Alt, NSFW) || Duck "Bill" Platypus (Alt, NSFW) || Jolt the Roadrunner (Alt, NSFW) || Razor the Shark (Alt, NSFW) || Eclipse the Darkling (NSFW) || Barby Koala (NSFW) || Walt Wallaby (Alt, NSFW) || Akhlut the Orca (Alt, NSFW) || Babylon Rogues (NSFW) || Crocbot (NSFW) || Silver the Hedgehog (NSFW) || Nicole the Holo-Lynx (Alt, NSFW) || Drago Wolf (NSFW) +Alt (NSFW) || Echo the Dolphin (NSFW) || Sealia Seal (NSFW) || Augustus the Polar Bear (NSFW) || Erma Ermine (NSFW) || Conquering Storm (Alt, NSFW) || Coral the Betta (NSFW) || Sleuth "Doggy" Dawg (NSFW) || Flip Penguin (NSFW) || Guntiver the Artic wolf (Alt. NSFW) || Queen Angelica the Anglerfish (NSFW)