This is part 18 of my Super Mario Galaxy gameplay walkthrough/lets play for the Nintendo Wii! In this part, we travel to a new Galaxy where Hot and Cold Collide; the Freezeflame Galaxy! First power star, we catch a Penguin who calls us Old then we defeat Baron Brrr a Sub-boss in the game. Second Power star, we enter a fire area and we discover the fire flower and turn into Fire Mario for the first time in this game and we have to light up torches to get to where we need to go. Third power star, the is combined with Fire and Ice we even travel to planets where you have to use the power of the Ice Flower and Fire Flower to get through obstacles!