更新内容：
Game state can be saved and loaded at any moment during the play.
Game soundtrack can be saved into a MIDI file.
Settings are saved individually for each game.
There are both full screen and windowed modes.
Window can be resized (bigger window sizes require better computer though).
Famicom DiskSystem support.
Famicom keyboard support.
GameGenie cheats support.
Joystick support.
