Thank you! Yes, I intend to add a help system to display an howto before you play a minigame for the first time. As it wasn't intended for the start, I had no time to implement it before the deadline as it involves a big amount of refactoring. I suppose the camera freeze you're talking about is due to the mouse reaching the edge of the viewport if your playing the web version. Once outside of the viewport, the mouse movement events are not sent to the game anymore. It's an issue I will have to look at thoroughly. And yes, it does a tricky turn sometimes when zooming at some of the boxes, I suppose it has to do with the global rotation value of the camera trying to reach the correct angle. Also in the todo list :)
Thank you for playing it!