Game Development Reference
4. Select an actuator, choose Moion , and change the value of Y to -0.50 in Loc (check
if the Y-axis is the correct direcion in which the whale should move, and if not,
change the value as required). Connect the bricks directly:
If you don't add a controller, but connect a sensor to an actuator (left brick to
right brick), it will automaically add the And controller (middle brick). You'll
be skipping a step.