|Time Period Located:||4 BC - Ancient Greece|
Muscles' monster egg resembles a Dumbbell
His overall appearance is based upon a Shot put ball.
Early previewed designs show he originally had a horn on his head. The colour of all 3 forms changed between versions. The face of the Bad transformation was also changed.
Muscles was noted for his stubbornness to completely surrender, even when clearly defeated. In almost all other cases, the Petra stamp or Skull stamp was removed before a Shifter reverted back to normal. In Muscles' case, even after he met defeat as Muscles-kon and reverted back, Muscles did not loose the stamp for some hours because of his stubborn refusal to surrender.
He enjoys exercising and running. When he turned Sarah into a giant, he appears in her cleavage area, showing he also has a hint of perverseness - though this is the only example of him doing this.
Muscles has the ability to make anyone he touches super-strong. This can be either by increasing their muscle mass or their size. Those effected by the power can even become stronger then Muscle himself, even when he is transformed.
Getalong's love beam was also shown to be able to reverse the effects of Muscles powers and revert someone back to normal.
Sarah Goodman, whom he had made into a giant moments earlier. His spikes are also missiles which can launch at a foe. He can also trap a foe in springs (the type used by numerous exercising equipment). These require strength to remove.
Super Ninja of the Great 4.
Like most Shifters, his name is formed of a word "Musu" (from the Japanese way of pronounuing "Muscle") and the triphone "Run". His Japanese name is likely a phonetic play on words, "Masurun" sounds similar to "Muscle Run".
- The Bad transformation is notable for its "blackface", which was considered a acceptable way of portraying those of African-descent at the time of the series production and release, complete with cables that act as "dreads". However, this tread would become controversial in the following years and over time such depictions in manga and anime moved away from the "blackface" portrayal of such characters.
|Time Shifters||Lovelove | Jitterbug | Eldora | Talen | Mosbee | Cocoron | Bubblegum | Lynx | Artie | Batterball | Ammon | Elfin | The Cardians | Monarisu | Wing | Moah | Elekin | Muscles | Unita | Raldo | Leafy | Monk | Nightcap | Musey | Change | Bugsy | Dipper | Knuckle | Doron | Shadow | Orbit | Dorimon | Wolfen | HaniWani | Hanasaka | Funga | Hyururu | Ekoeko | Nioja | Deathdas | Nascal | Gera|
|Locations||The Land of Time | The Land of Dread|
|Keepers||Old Timer | Dark Lord|
|Forms||Monster Eggs | Bad Transformation | Super Transformation|