In a way it's an "objective upgrade" over the original, featuring new graphics, a new soundtrack, optional difficulty and challenge modes - all of which can be disabled to just play the original at a higher resolution - but I just can't help wondering what the point was other than to pocket some money off of an originally free game. Pixel definitely deserves this money, but does Nicalis? I'm not sure...

(That aside, the old graphics and soundtrack are better anyways)