Like the other games in the PixelJunk series, 1-4 is a 2D game rendered in glorious 1080p hi def. Set deep beneath the earth's crust, you control a small rocket-propelled capsule that traverses a series of honeycombed caverns sprinkled with hazards. Though you'll blast swarms of bats and small gun turrets, your chief enemy is heat. And deep underground, there are rivers of lava that can scorch your tiny metal vessel into a baked potato. When your heat meter builds up, you can take a dip in an underground river to cool down. Your primary goal is to stay alive by avoiding lava, but you can use your winch to pick up stranded survivors for extra points.