Some games break in Flash Player's full-screen mode: in Bloons darts
make a sound but never fly. Instead of pressing Ctrl+F, the streamer
stretches the projector's window to the display and moves it up by the
menu bar's height, measured from the window's opening height and the
movie's. The session manager now passes the game's exact size as
GAME_WIDTH/GAME_HEIGHT and rounds only the display size to even.