The first monster in video game?

[ssj12]

Main Entry:¹mon·ster Pronunciation: \ˈmän(t)-stər\ Function:noun Etymology:Middle English monstre, from Anglo-French, from Latin monstrum omen, monster, from monēre to warn — more at mindDate:14th century

1 a: an animal or plant of abnormal form or structure b: one who deviates from normal or acceptable behavior or character

2: a threatening force

3 a: an animal of strange or terrifying shape b: one unusually large for its kind

4: something monstrous; especially : a person of unnatural or extreme ugliness, deformity, wickedness, or cruelty

5: one that is highly successful

Main Entry: ²monster Function:adjective Date:1837

: enormous or impressive especially in size, extent, or numbers

I'll take space invaders for $1.