Nicely done, I didn't knew about puzzlescript, cool stuff. Works in firefox, music too, even in background while I'm writing, its nice.
I have to say for a lot of text the game is presenting the concept was completely lost to me, I don't see anywhere explanation unless I'm blind. I was finishing the first level without even knowing how, and had to repeat it at least 5 times to understand. Was thinking at first that I just have to press the dot, because the game explains it so "You need to put it on the gray stamp first", but then something shows and disappears. So I think okay maybe its rotating like in mine game, and yes... kinda, but no - the first level is a straight line and You can't see this clearly.
Also, the game has X button for action. This is not true, there is no action to do in game, its just a confirmation for menus, etc. But I didn't knew that and I tried to put the dice on gray spot and press X while standing on red spot. Well no:/
After few tries I got it: the dice has six faces not really sides, and these faces just change sequentially. The 6 faces is just coincidence, could be 100, could be 3. I would put something like this in the description below the game, because I feel not many folks will get it.
Sorry if this sounds harsh, I just tried to explain how I played, because its not ideal when the puzzle is the mechanic itself.
A nice feature would be to display next faces in order below the level, just to see what is coming next. This would also help to click the game faster in the heads, you would see immediately what is going on.
Overall good puzzler, very chill, though I gave up at last level feels painful;) Good difficulty balance I think. And the music is spot on.