Really nice graphics and feel. And a faithful follow-up to one of the most notorious video game flops of all time.
I went into the game with knowledge of the cube-shaped world, so I was able to keep track of things just by heading into each screen, finding the cartridge, then backtracking to the start.
I also found out about the the infinite-spawning candy feature, but noticed that the candy will stick around even if you don't collect it. So you can hop in and out of a hole until 10 candies have piled up, then grab 'em all at once.
I also made use of the head extension on the back face of the cube, where you could put your head over the bottom walls of the rock maze. Otherwise, it would have been nice for the head-extending to actual mean something.
Anyway, the game is pretty good for where it's at.