Deletion of Arm cannon

Comment: Gun arms/arm cannons/whatever need to be the subject of  reliable sources in order to establish |notability. It's one of countless fantasy/sci-fi facets which get repeated but are no more than the sum of their parts. Having a list of 'he's got one, she's got one' isn't an encyclopedia article, it adds nothing to individual descriptions of the weapons when writing about the characters
Stance: delete
Cited policy: Wikipedia:Reliable sources (WP:RS||WP:N)

Comment: if one were to strip the article of |original research, you would be left with "Arm cannon is a name given to some video game weapons
Stance: delete
Cited policy: Wikipedia:No original research (WP:OR)