[Tutor] break

[Matthew Ngaha]

thanks guys ive finally got it working. even though i didnt use the
flag due to invalid syntax i realized since i was getting no errors i
wasnt actually doing anything wrong. My mistake was i removed the
ememy ship but for some reason forgot to remove the missile so it was
still active on the next update/mainloop. im still interested in
finding out how to write this in python 3 assert(!flag).