Who Shot Gum E. Bear? was created with Inform and has IFID CACB57F3-2876-499B-BC17-0BA5D79A7403.
To play a work like this one, you need an interpreter program: many are available,
among them Gargoyle for MacOS, Linux or Windows;
Spatterlight for MacOS;
Windows Frotz or
Windows Glulxe for Windows.
Or you can play without downloading anything by following the 'Play In-Browser'
link, using the Quixe interpreter. You'll need to have Javascript enabled
on your web browser.