I would like to second this, since it basically covers what I would say. The game itself is good, but it needs to be more responsive and the levels need remapping. A good example is in "The Grim Reaper is a Live-Streamer", where you're expected to move three spaces in a single beat, something the game isn't responsive enough for. And as Krail said, the jumps are almost always better to just avoid rather than jump over, since you have to jump off beat, rather than to the beat, which goes against every rhythm bone in my body.
Again, the game itself is great. It needs reworking because in its current state it doesn't feel like a rhythm game, rather a bullethell with music in the background. I don't mean to bash the game, though. Like Kraid said, the visuals are amazing, and I think with enough reworking this could be a really good rhythm game. It's hard to hit the pink obstacles since most of the time you're just trying to avoid whatever comes at you, but they're easy to see, and while the gameplay doesn't feel fair, I can still make out what's happening.
But like I said at the beginning, basically everything else has already been said. Good game, but it doesn't feel very fair