One word: punctuation.

As for your question, you need a small receiver, 2 modded servos that can turn 360 degrees, 1 normal servo, and a battery.

For a fancier version, 2 microdrive motors, 2 small esc's or 1 small dual motor esc, a servo, a receiver and a battery.

You either use the 2 modified servos or the microdrive motors to power the wheels, and the servo to make the flipper lift.