333141 Soldering kit: Simon Says, Attiny404

The Simon Says game is an educational kit which teaches you how to solder, and at the end, you get to have your own little game. The aim of the game is to press the buttons in the order in which the LED lights up. With every correct answer, the game becomes a bit more difficult. How many correct answers can you get?

The kit is based on an Attiny404 microcontroller programmed in Arduino. On the back is a CR2032 battery, which makes the kit portable. There is also a key chain holder. The soldering process is simple enough based on the mark on the PCB.