How do I make an animation play as soon as I start the game?

I’m kinda a noob so please explain it easily.

Logic Buttons:

Always sensor -> AND -> IPO/Curve Actuator (with the start end end frames set according to your animation)

In 2.57 logic buttons:

Always sensor-> AND controller-> F-Curve actuator (with the start and end frames set in the start frame and end frame boxes)

You can also use other sensor to control the animation (this is VERY helpful when making elevators and moving objects and such).