This will contains solutions to possible problems that you might have with the game - there's more discussion and solutions posted in the Steam discussion forums at http://steamcommunity.com/app/22230/discussions/0 but they get purged after a while, while everything here is permanent.

My game is lagging
Go toMy Documents\My Games\UnrealEngine3\BoulderGame\Config\BoulderEngine.ini and set bSmoothFrameRate and true and MaxSmoothedFrameRate to 30.