Use the arrow keys or WASD to get to the door. Green gel kills you. Blue gel makes you bounce. Blue portals teleport you to the orange portal; red portals teleport you to the yellow portal, but not vice versa. This game has more lag in fullscreen mode.
Credit to Valve for the music. Music obtained from http://www.thinkwithportals.com/music.php This game is very remix friendly! You can make your own levels by making new costumes for the level sprite, and then you can use the custom nextLevel blocks to input the coordinates for the orb, door, and portals to spawn at.
