My fist general purpose console was the Sega Master System. It had a flowchart displayed on the top telling you how to use it.

It might not have been pretty in the traditional sense but I loved it.

Looking back on it the chart was somewhat misleading, the console had two built in games that were only accessible if you didn't insert a cartridge or card (Hang On, and Safari Hunt), and a third that also needed a controller connected and a few buttons held down when you turned the system on (snail maze).