A clone of the good kind.
So, is it a good game? Yep! It's your typical platformer, except for the fact that you can only go forward and jump. This adds a new challenge to the genre, because you can't go back and line yourself up for a jump, you'll have to make it when you see, or you're toast. So it'll probably be difficult for people used to regular platformers.
Now, on to the graphics. Well, there's nothing earth-scattering here, seen better, seen worse. The sound is, well there, again nothing impressive, but then again nothing terrible. So, not a standout game in any way.