aged_up
ahoge
alien
ambiguous_gender
anatid
anseriform
anserine
avian
beak
bird
black_hair
clothed
clothing
comic
dialogue
digital_media_(artwork)
english_text
feral
goose
group
hair
hi_res
human
humanoid
inimoose
invader_zim
irken
keef
male
mammal
monochrome
nickelodeon
text
trio
zim_(invader_zim)
