Less a matter of "explore the possibilities", more a matter of "did not register as a possibility". (Even now, after a lot more exploration, I've been finding the details of rotation kind of hard to guess. And sometimes shifting: I got stuck by accidentally getting a square in both sides of GRAB, and couldn't let go of them, and couldn't shift out of it.)
At this point I've got four rooms I can't reach; three of them seem to be locked behind a shape I don't have (i.e., the mirror of GRAB), and the fourth...is north of the eight-lasers room, through an exit that only PUSH can take, behind lasers that only SAFE can pass. I can't tell if I'm missing something, or if there's another one of these trick rotations that would work.
Well, the last one (row 2, col 5) is secret room, It can only be accessed after obtaining last power - copying. There are last loot piece in it. Hope with all my heart that you will get it.
As for mirror of GRAB - I can't even imagine, what rooms are you talking about. Some of @Doors@ could be opened by Z-shape with box (.::), but no mirrors.
Shifting from Z to I. In several playtest between my testers and me we encountered it twice. Bug, obviously, but it is not easely repeatable, I presume. I will look into it in next versions.
Rotation/Shifting blocks. Do you think point/circle on "main"/center body part will be enough to help? Maybe, allowing rotation both cw and ccw will solve problem? Or it is wiser to implement "preview-confirm" system? Shape module will be rewriten sooner or later, so there is
some time for better planning.
