Mouse Island is based on the board game with the same name, which was designed by Donald Green and is published by The Great American Trading Co.
See www.octi.net for more information about Mouse Island and Donald Green's other games.
 
Basic Game
First, move a mouse to any adjacent space not occupied by another mouse. Then, either move an unoccupied block to a new location or remove an unoccupied block from the game. All remaining blocks must be connected at the end of each turn.
 
Objective: Be the first to reach the cheese on the other side of the island. You can also win by preventing the other player from moving. If the timer runs out, the Blue mouse wins.
 
Advanced Game
First, move a mouse to any adjacent space not occupied by another mouse. Then, either reposition an unoccupied light block (causing it to become dark), or remove an unoccupied dark block. All blocks must be connected at the end of each turn.
 
Objective: Be the first to reach the cheese on the other side of the island. You can also win by preventing the other player from moving.
 
(Oddly enough, the zillions code here is simpler than for the basic game!)
 
 
The Mouse Island rules file also comes with several variations; read the descriptions in Zillions for more information.
 
The Author
You'll find more rules files for download on Stephen Tavener's web site at http://scat.demon.co.uk/free.html

You should extract from the downloaded zip file preserving path names.