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Could the category rules please be defined?

Could the rules for the category please be defined?

The link to the guide is currently not working.

Is there any particular reason for why nobody has ever submitted a run on the English version? Or has it just not been done yet?

The version of the game on the Switch allows you to Game Over and continue literally right where you died with little to no time loss, and since you then get refilled bombs and often better weaponry, it seems that gaming over, in some instances, could be a better strategy than trying to stay alive. I hopefully don't sound ignorant, as I haven't been playing for quite as long as other people here have, but would it be smart to add a rule against gaming over?

The game developers still need to fix the game because they broke it in the last patch, but for when they do, could we add some categories that people could actually practice and get better at? I'm open for discussion on categories, there's just no way to grind the tutorial.

As somebody who loves this game, I thought it would be fun to look up its speedrun page. After seeing your run, I was left in awe. I'm thinking this game might be something I want to give a go at, but could you make some sort of pastebin describing all the information you've gathered so far? There looks to be a lot of intricate setup, and I think it would be nice to generally make this a more beginner-friendly game.

As someone who hasn't been running for very long at all, I really do not mean to seem ignorant, but given the pretty decently linear quality of this game, wouldn't IL Leaderboards be pretty helpful for a game such as this? I may be being slightly biased since I think IL's are fantastic, but in every circumstance I've witnessed, they seem to do nothing but grow the community and greatly improve the likelihood of beginners (such as myself) to get into a game that would otherwise seem difficult to approach. Just my view on it though, let me know what the deal is with it!

Would the timing for In-Level runs start upon hitting go? And then presumably end when you touch the final kelp seed of the level?

I've only so far dipped my toe into the world of Sonic Speedrunning, so forgive me if I come across foolish, but wouldn't this game be almost perfect for level-specific leaderboards? Not only would it give more focus to precise optimization, but I feel as if it would also make the game a little more inviting to new runners (such as myself). Just an idea being thrown out there, let me know what you think.