Use the arrow buttons on screen or arrow keys to move to crossing gates, and use the "activate lights" button the use the bells / lights. The train locator shows approaching trains. The red square is the crossing and the blue thing is the train. Try to get the highscore for most cars passed safely.
Thanks to @davis9574 for the bells. This is the first game I've made in a while. Like and star! For best quality use fullscreen