Common NG+ Questions so far:

- How do I unlock NG+?

You must finish a normal playthrough of jazztronauts by filling the shard tank. After the ending plays, you will be able to activate NG+ via a podium in front of the shard tank. If you are playing with others, all players need to agree to do this as it resets your progress completely in exchange for access to further story content and a x1 multiplier on amount of money earned.

- The NG+ related items in the bar aren't doing anything?

You may need to update your version of the game. Please quit and restart GMod. If that doesn't resolve the issue, uninstall and reinstall the mod and content packs. If it's still not working then, delete your addons folder to force a clean install.
If it's not working then, you may have a conflicting addon installed. If you disable all other addons and have followed these steps, and the problem still is not resolved, please attempt to interact with the item and take a screenshot of your error log.

- I've collected all the cubes, but nothing is happening?

Go to a new map, and then come back!

In addition:
Some folks reached out to us about a recipe that features in one dialogue option after you reach 100 shards. Daeren has transcribed it for us in a more accessible form here: https://pastebin.com/mFwVx6r1

WARNING! Carry on reading! Or you will die, even if you only looked at the word warning! Once there was a little girl called Clarissa, she was ten-years-old and she lived in a mental hospital, because she killed her mom and her dad. She got so bad she went to kill all the staff in the hospital so the More- government decided that best idea was to get rid of her so they set up a special room to kill her, as humane as possible but it went wrong the machine they were using went wrong. And she sat there in agony for hours until she died. Now every week on the day of her death she returns to the person that reads this letter, on a monday night at 12:00a.m. She creeps into your room and kills you slowly, by cutting you and watching you bleed to death. Now send this to ten other profiles on this one site, and she will haunt someone else who doesn't. This isn't fake. apparently, if u copy and paste this to ten comments in the next ten minutes u will have the best of your life. this is fake

In the third meeting with the black and red cat (aka ???), What am i supposed to do in the completely pitch-black room?

Nevermind, I figured it out, but i have another question.
After hitting the buttons after getting 10/10 red cubes, Do you need 100 shards for something to happen?

Can only 1 player do all the sidequests to make the True end happen, or do all players need to do it?

Refure - You can only get one ending per playthrough. Try going to a new map and coming back. If that doesn't work, you need to update your copy of the game.
Stychis - Due to how the game is coded, in a group, yes. One player can get the True End while another can get the Bad End. Players who get the Bad End get put in a lobby zone to wait. However, I would strongly recommend holding off on intiating the True End, as it will be patched in the next day or so to match its quality to the rest of the games writing!

Also sorry folks, for some reason steam isn't letting me delete the spam in the thread.

I need help with the ending, I don't know what to do. I've looked up a video showing the ending (I haven't seen the full thing only the part where he destroys things) and it shows him destroying walls and all that, I've tried that but the prop snatcher won't do anything except steal the props. Did I do something wrong?

Serious Spriter That video is now several versions of the game out of date, but to steal the walls and such you need to have purchased the upgrades to do so from the Bartender!

I didn't get all the upgrades. Is there a way to go back, play more maps and get enough money to fully upgrade the prop snatcher and then return to the outro part?

Serious Spriter - I think so, but I'm not entirely sure as I'm not one of the programmers. Enter changelevel jazz_bar into the console and that should do it for sending you back, and when you're ready to go back in, enter changelevel jazz_outro

When I do that it just sends me back to the outro part.

Sorry, which bit of my instructions does that?

No idea I put the command in (changelevel jazz_bar) and It still just sends me to the outro part

Shouldnt you be able to tear apart the walls in the outro anyway? The stunbaton you get in the outro can tear out walls instantly, regardless of the world steal speed upgrade you have bought, so I am guessing you get a fully upgraded stun baton in the ending, not the one you normally have. If you get what I mean.

For starters: please put that in spoilers text and second of all No the prop snatcher you get in the ending only has the upgrades you got before you went to the outro part