Gun Rock

It's very important to try to get no misses in the first half to build up life. Then it's just a matter of hitting the stairs well enough to have overflow going into the jacks - if you do you've basically won. For the jacks, you can also try to slow them down a bit to save some energy.

The bracket-foot stomps feel like you're hitting them, but you can still get a series of misses. You have to lift all four feet and step back down firmly, so you need to get a feel for it while playing. For the high-speed large stairs, it's okay to hit some and drop some. Just drag the single stairs to save everything.

There are no potions, the BPM isn't slow, and stairs keep appearing. After that, the 4-note drills are also very difficult and exhausting.

It's best to full combo up to the single crossover stairs, and as for the brackets, you can clear it if you memorize the movement timing.