Abstract: A portable miniature golf game to be played with a putter and ball having multiple, flexible retaining rails, obstacles, and a ball receptacle which are attachable to multiple putting mats arranged in desired abutting relationships. Each of the putting mats has a top-playing surface of loop-like fibers which are suitable for interlocking engagement with hook-like projections incorporated into the base surface of each retaining rail and obstacle. The hook-like projections are disposed on mount devices that are interconnected with each retaining rail and obstacle. The number and distribution of mount devices interconnected with each retaining rail and obstacle is dependent on the size of each retaining rail and obstacle. The ball receptacle may be disposed on any desired location on any putting mat, and the retaining rails and obstacles may be detachably attached to the putting mats at any desired location to form various miniature golf hole configurations.