The demo is free on the eshop, and all of the levels are different from the main game if I’m not mistaken. Also progress in the demo is saved, so there wouldn’t be a need to unlock the levels every time to prepare a session for a full game run or an individual level run.

I´d probably run that

Just wondering what the mods think of this, alternatively it could maybe be added to the site as a separate (albeit) short game

https://cyberscore.me.uk/game/2274

As I said, there can be the opportunity to do the demo levels individually or all 5 levels consecutively