If you dont want to use VCE (I luvvin the VCE but a lot of stuff takes way too many lines to do) or want to do default only, you can create a projectile randomizer and have each option do a seteventenabled on the teleport brick.
projectile randomizer looks like this
[ X X X X ] - random projectile brick
[X][X][X][X] - choices
you can make the random projectile brick fire a pong or a pinball downward, and it will spawn randomly on the area of the projectile brick
then you event it so when any of the choice bricks takes in a projectile, you can make each one setEventEnabled positive to the teleporter. Clicking the teleport button will spawn a projectile on the projectile brick and will choose an outcome randomly, and they can then click another brick (or to a plate below the player and positive an OnPlayerTouch) to complete the teleport.
