def on_button_pressed_a():
    mouse.move(1)
input.on_button_pressed(Button.A, on_button_pressed_a)

mouse: game.LedSprite = None
cat = game.create_sprite(0, 0)
mouse = game.create_sprite(4, 4)
mouse.set(LedSpriteProperty.BRIGHTNESS, 100)
game.set_score(0)
game.set_life(1)
cat.change(LedSpriteProperty.DIRECTION, 45)
mouse.change(LedSpriteProperty.DIRECTION, 270)

def on_forever():
    cat.if_on_edge_bounce()
    cat.move(1)
    if cat.is_touching(mouse):
        game.remove_life(1)
    basic.pause(1000)
basic.forever(on_forever)
