The White Rabbit running and checking his pocket watch

Down the Rabbit Hole

Hurry through the burrow, you’re late!

Collect carrots and catch the rare golden pocket watch: big bonus points, and time slows for 20 seconds. Jump for the very rare Drink Me bottle for an extra heart, and don’t touch the Eat Me cookies! After 7 seconds the tunnel speeds up. Three hearts each. Run side by side; the higher score wins.

	White Rabbit	Alice
Move	hold `A` `D` or `←` `→`	hold `←` `→`
Jump	`W` or `↑`	`↑`
Duck	hold `S` or `↓`	hold `↓`

Space pauses, M mutes the music. micro:bit: tilt to move, A jumps, hold B to duck, A+B pauses.

Not connected

Both boards use the same code

or press Enter / micro:bit button A

Ha!Ha!Ha!

Too late!

PAUSED

Press Space (or A+B on a micro:bit) to keep running.

Flash your micro:bit

The game reads one line per update: X,BTN_A,BTN_B at 115200 baud. For two players, put the same code on both boards.

MakeCode (makecode.microbit.org, JavaScript tab)

serial.redirectToUSB()
serial.setBaudRate(BaudRate.BaudRate115200)
basic.showIcon(IconNames.Rabbit)
basic.forever(function () {
    let a = 0
    let b = 0
    if (input.buttonIsPressed(Button.A)) {
        a = 1
    }
    if (input.buttonIsPressed(Button.B)) {
        b = 1
    }
    serial.writeLine("" + input.acceleration(Dimension.X) + "," + a + "," + b)
    basic.pause(30)
})

MicroPython (Mu / python.microbit.org)

from microbit import *

uart.init(baudrate=115200)
display.show(Image.RABBIT)

while True:
    x = accelerometer.get_x()
    a = 1 if button_a.is_pressed() else 0
    b = 1 if button_b.is_pressed() else 0
    print("%d,%d,%d" % (x, a, b))
    sleep(30)

Tilt steers, A jumps, hold B to duck, press A+B together to pause.

Download the code to each micro:bit (a rabbit appears on its screen when it's running). Plug both in by USB, then click Connect Player 1 and pick the first board, and Connect Player 2 and pick the other one. Use Chrome or Edge, and close the MakeCode tab (or disconnect it there) and any other serial monitor first, because only one page can use a port.