Yes, you may be thinking "Hey you can only have one level thread >:U", but do not worry, I'll explain.
So, basically, from now on, I'm just gonna go out and say that the Amalgamation series can have a level made by anyone as long as they ask me and I respond. This post was more or less made so that people 1) know this and 2) have easier access to all the levels. I will have some standards though for these levels.
1) Level Editor only, no Constructor. It'd ruin the point of Amalgamation if you made the interiors yourself.
2) Pick 1-3 from a) Moving fans b) Moving stuff c) Regular fans to include in your level
3) Try to be original with *how* you use the interiors. Yes, the point of Amalgamation is to use other levels in your design. Is this an excuse to have a stroll through 10 levels the way they were meant to be played? No.
4) Playtest it, at least by yourself. Also, a great tip in general is to think "How would I play [this section of the level] if I wasn't the level's designer?". It can help.
Beyond that though, I don't particularly care about how the level is made. As long as its fun and fairly original, I'll certainly accept it.
Well, here comes Amalgamation V: Marble's Peak! It's quite long, though it only has ~6 sections. I personally find it good (wow narcissism smh), and I hope you enjoy (though send feedback if you'd like lol please)