Do i really have to go through the entire game to reach the library then do that again for each ending

So far I've managed to get 10 endings in this game, but I'm extremely confused on how to get the last ending. I've searched all over and can't figure out what I'm supposed to do. My assumption is that the last floppy disk is hidden behind the password in The End, since I've searched all over every other area and can't seem to find anything (For reference I've found 2 disks in Level 0, 3 in the Mall, 2 in the Playrooms, 2 in the Pools and 1 in the Forest). Many NPCs feel like they should have something more...

Although there are many sublevels in this game there are also a few super secret areas like the hot dog room and the jail cell in pipe dreams (check my other screenshots.) Please comment underneath if you have found something else or have questions.

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How would one get to the super maze? I cannot find the super maze and I have no idea on where to look. (I read it is somewhere in the playground I just don't know where) Any help is appreciated! (This is an outdated question, I have obtained all achievements but can still be used by people looking for achievements)...