As sometimes happens, the planet earth has been destroyed by some mad scientist, so you have to go back
to yesterday thanks to a time machine and try to save the world. It's very fast in responding and writing the new locations, but of course it slows down when there are quilled pictures to draw, which anyway are colourful and decent enough. It's also very fast to play, there doesn't seem much to examine and it's easy to find a useful item, for example, a location away from where it must be used. It's certainly playable. You can choose between too fonts.
Ok: basic, fast and easy.
