Barrier: a set of four adjacent blocks, the same color as the wall(so invincibility and bombs won't help).
Shift up and down the screen: in older versions of jetlag, the character always stayed on the same row. These charms move the character up and down the screen by one row. I think I want the move to be persistent.
Goal: Two blocks that are the same color as the wall, with four dash characters between them. The blocks will kill you. The dashes give you a score, and you can store up to 10 of them like an electrical charge. At any point, you can press ALT to discharge, and cause an event that depends on the level of charge. But I'm not going to document how the various charges 1-10 give you abilities.