The way it should go would be somehow like the original Lemmings game where you have some skills in the toolbar, with the number available for each skills, and right-click on a walking Pingus/Lemmings to assign the selected skill. Some skills are also digging too fast imho. But anyway, I think it could be neat to make levels in creative and perhaps even create some new skills. Would love to see the classical trapdoor, an exit somewhere, steel blocks where you can't dig, one-way blocks, turning blocks, and many many things in order to make nice puzzles.