Feel free to modify the level files and even create your own!
s - The start position of the gopher. There must be one (and only one) of this present.
] - A block.
x - A box.
o - A pad, or "objective" - the position where a box will be activated if placed there. Should be on top of a block e.g. ]o.
e - An elevator. Should be accompanied by hyphens indicating the elevator's range of motion e.g. e-- for a 2-story elevator.
- - Indicates the elevator shaft i.e. how far up the elevator goes.
. - Used as a spacer e.g. ].] will create a floor, a space, and a ceiling. Necessary if a vertical column has absolutely nothing on it.
In the level files spaces separate vertical columns, which are represented as space-less character sequences.