That is the usual spelling of "superhero" or alternately super-hero (costumed hero of fiction).
The term was disputed as a trademark through the early 21st century. The two word phrase "SUPER HEROES" is now jointly owned by Marvel Comics and DC Comics.
The correct spelling is "superheroes".
superheroes
It depends on the usage:The plural noun "superpowers" refers to the powerful nations of the world.The plural noun phrase "super powers" refers to superhuman abilities of fictional superheroes.
The two words are now combined into the one word : superhero .
If you are trying to spell musician that is how you spell it.
The correct spelling is "superheroes".
superheroes
Superheroes - DVD - was created in 2005.
The Physics of Superheroes was created in 2005.
The Physics of Superheroes has 365 pages.
If you would like to eat superheroes, then you are a cannibal.
Superheroes - EP - was created on 2005-10-18.
International Superheroes of Hardcore was created in 2008.
Legends of the Superheroes was created on 1979-01-18.
Legends of the Superheroes ended on 1979-01-25.
Superheroes of BMX was created on 1997-05-26.
The World's Greatest Superheroes was created in 1978.