ok, tell your dad this,,,,,,,
"dad can i get money for a videogame"
then he will say some dumb S**T excuse...
"say i get pretty good grades and i want some encouragment to get better grades then that"
He will say some thing like "An F in spanish?" no your not,
then you bull s**T how good your other grades are
if that doesnt work then say you are willing to work for it like vacumming the house,dusting,ETC,....