In the past, I created couple games for the TTGO T DISPLAY board. M5StickC Plus has same size display, it has built in buzzer, battery, you can carry it in a pocket and it si also powered by ESP32. If you add this joystick module you have a little pocket game console. I edited Togo games so now I can run them on M5Stick C Plus board. Feel free to use and modify my code.