Graphics and sound are very nice! (I wasn't able to get far enough, but) from the screenshots I see a lot of variation in tone and texture. The style seems something that isn't quite 8-bit, but not quite 16-bit either; I like it.
It took a little time to find the jump key. At least some form of instruction for that would be nice.
The dashing mechanic, to me, felt difficult to use. Maybe the difficulty curve went a little too steep. The game launcher promises "Intense Challenge" so I guess I can't complain about that too much. That, and I'm not very good at these games. But I see where people who do like these sorts of games could get hooked on this.