Studio Ganzheit

I have finished the first of the three final stages in the threshold. Clearing one of the final three stages opens an important gate one by one, and in the process, reveals important parts of the story little by little. I am making the final stage, but I have absolutely no idea what the difficulty level is like. I have no idea if it is okay to provide no hints at all, if I should provide them, or to what extent I should provide them. I have no idea whether it is difficult or easy either. Since it is the final stage, I am just trying to make it as difficult as possible for now, while trying to follow the rules below as much as possible.

• Minimize state puzzles involving multiple on/off switches. Even if included, use only one switch.
• Avoid jumping matched to timing. (Timing-based play is completely nullified by bulletwalk anyway.)
• Keep physical requirements to a minimum.

I will just build it first and try fixing it during testing. It has been 2 years since I started the current project, and I think I am slowly getting a bit exhausted. Perhaps I am getting tired as I age. I want to finish the remaining two stages and 2 bosses by June and quickly enter alpha testing.