There is a very wholesome Easter egg on the Miyoo Mini Plus while running Onion OS. If you enter the Konami code (Up, Up, Down, Down, Left, Right, Left, Right, B, A) while in the main menu, a DVD screen saver will play. After a minute or so a credit sequence will play out.
If you download the source code, you can find the Easter egg code in Onion 4.3.0/src/easter/easter.c.
You can also find the code for the Konami input in Onion 4.3.0/src/keymon/keymon.c.
The images and Easter bin file on the SD card will be located in SD/.tmp_update/res.
Ducky Obrien 