Ghost Bloody Train

If you're already used to horizontal twists combined with holds like Fallen Angel D16, Sugar Conspiracy Theory D16, and Xeroize D18, you could even consider this low-to-mid tier. Since about 90% of the chart is holds, if you can handle the twists too, it's practically a free potion.

The late-game crossovers are tougher than expected, and the final run is also difficult.