Imprecise and a bit Slow
I love the graphical style and the game concept and puzzles are pretty good but there are two issues that I had:
- One minor issue is the slowness of the character and especially the burrow and unburrow animations
- The major issue though is the imprecision of the visuals
I realize you wanted to avoid the typical grid look of most puzzle games of this type but it detracted heavily from being able to actually play. The combination of continuous (rather than step-wise) movement and the semi-isometric view makes it nearly impossible not only to solve puzzles and see how they're solved, but even if you know what to do it's difficult to execute it.
Combined with limited lives it makes the game very frustrating.