Mario's PCB hosts a Texas Instruments CC2642R "SimpleLink 32-bit Arm Cortex-M4F Bluetooth Low Energy wireless MCU with 352kB Flash". According to chip markings R1F. 88kB RAM. 31 GPIOs. Package is a 7 × 7 mm VQFN (48).
Different MCU manufacturer, different CPU architecture.
Winbond W25Q64JV(S)SIQ 3V 64Mbit serial flash memory! Well, this thing has a large display and it does show animations and plays sounds. There's quite some space for those assets.
Also some mystery chips...
3/