A1-2 - Crossing Steams is the second level of 'Warming Up'. In this level, you will encounter a series of entrances. First of all, guide the steam up to the first entrance. Then the steam will travel all the way to the side, guide the steam up to the ducks, and then up the second to last entrance. Finally, when all the steam is safely out of the entrances, guide the steam to the final duck and up to the pipe.