My brother needed a fourth person for a gamejam this weekend, so now I’m a game developer: https://timorl.itch.io/iks. Obviously gamejam quality, but you can burn a couple minutes. 
I don't get what the white pipe is.
@robryk Which level did you get to?
@timorl Uh... it does nothing? (I assume it's supposed to rotate stuff.) My browser's firefox, the extensions that seem potentially relevant are ublock origin and zotero connector. Nothing in the JS console, except for godot's welcome message, some complaints about audio mix rates, and a complaint about long-running stuff in a context that blocks rendering.
@robryk You gotta use it while holding the tile. As in, pick up the tile by clicking LMB, hold it, and then click RMB to rotate as many times you need, only let go of LMB when putting it down. Unless you hit a particularly nasty bug that I have never seen anywhere else. <_<”
@robryk The white pipe becomes relevant later, and the first time it’s needed to finish a level is obvious. We should probably not display it at all until it becomes relevant, but eh.
You should also be able to experiment with it a bit in level 6 (before it’s relevant to solutions, lvl6 is just large), but what exactly it does might be unintuitive for multiple reasons (not the least being how exactly we mix paint). Lemme know explicitly if you want spoilers.