Entering & Leaving Rooms in Compact Machines

The Personal Shrinking Device (PSD) handles all movement in and out of rooms:

• Entering. Use the PSD on a placed Compact Machine block. You are shrunk down and teleported into that machine's room.
• Leaving. Inside a room, use the PSD on one of the machine walls. You step back out next to the machine block in the outside world.
• Nesting. Rooms can contain more Compact Machines - enter them the same way, and leave level by level.

Rooms are sealed: the walls are unbreakable from the inside, and out-of-bounds movement is controlled by game rules (see Commands & Game Rules), so survival players cannot escape a room except through the PSD.