This game has a lot of potential, but it is bogged down by a general lack of polish. I will say the game's level design is incredibly solid and when it comes to the normal levels I generally have no complaints. Now onto the lack of polish: The auto lock on mechanic is more aggressive than it has to be and gets you killed more than it helps (especially in bosses), the spike enemies that spin around continue spinning through resets, introducing an unnecessary element of RNG that can make some of your S rank attempts moot and the final 2 bosses are genuinely one of the worst experiences I've ever had in a game. I S-ranked every level and boss except the final boss, which was just too much and made me quit. The third boss' camera is way too zoomed out and makes focusing on it, its projectiles, the enemies you need to continue your combo and your own position incredibly difficult. The final boss' first attack is incredibly lame, I've found that most of the time you don't even have to move to avoid anything, and by the second and third phase the screen is so cluttered and the attacks are coming so fast that it feels like there's nothing I can do to react. When I beat that phase and had to continue going for more phases and died and tapped out, after having spent an hour and a half on the boss. I think the game would be much much better if you could take multiple hits on bosses, or if they were removed altogether.

Also the game had an issue where the frame rate was completely inconsistent when in full screen. Don't know what that's about and I didn't find a fix. So yeah if you want a fun time S-ranking levels this game's good, but don't bother getting the S rank achievements, suffering through the bosses is not ♥♥♥♥♥♥♥ worth it, I genuinely wanted to shoot myself in the ♥♥♥♥♥♥♥ head.