I built a version of B2EMO from Star Wars Andor
Construction time: About 2 months.
Cost: ~$1000
Construction information:
VEX IQ gen 2 brain with 12 ports (9 motor, 2 pneumatic, 1 serial)
9 motors - 4 drive - 4 legs (raise & lower each foot) - 1 turn head
4 Mecanum wheels - Allow driving sideways
4 pneumatic switches (lower body, upper body, front of head, back of head)
12 pneumatic cylinders (4 lower body, 4 upper body, 4 head)
ESP32 connected via serial port to control ws2812b LED ring
7.2v 2,000 mAh Lithium Ion Battery
Weight: 16lbs
Here are a couple videos:
What do you think?