Jenga is a game that requires finesse and a steady hand, unless of course you are playing with a stack of 600-pound wooden blocks. Then, heavy machinery is called for. Enter Cat’s excavators, which are, for the mechanically uninformed, huge construction trucks equipped with claw arms. This real-life game of Jenga was put on by Caterpillar, making it a surprisingly playful bit of advertising. Watch and be impressed at how mammoth machines that weigh a few tons and are used for ripping up earth are still, deep down, toys.