Hey Mark huge fan. Just played through the new demo. Movement is really great. Love the rotating doors as a mechanic. I didn't find any bugs. I really appreciated the feature that let you make the magnet color attract to the same color. In real life opposites attract, but i found that a bit confusing so that setting really helped me. That last level was tricky. I got a mini aha moment for that one for sure. SPOILERS FOR LAST LEVEL SOLUTION---- I think the door that stops the block from rising back up could be a bit longer/ a bit more obvious that its protruding. Other than that i'm super impressed and had fun playing it!