One reason that it's critical to have correct polarity in this particular game is that a bridge rectifier is utilized to convert AC to DC in order to provide sufficient oomph to start the doodle bug feature. Incorrect switching of hot/com will destroy said bridge rectifier. The protective fuse will immediately blow and the feature will be rendered inoperative.
New! Dark mode!
Browsing Pinside at night? Getting tired of all the white? Switch to dark mode using the button in the top right (or CTRL-B)!