Upwall

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How to Build the Trick:
Here is a tutorial by 22DOMINOES22

How to Start the Trick:
Have a domino line knock down the first domino on the bottom of the wall.

How to End the Trick:
Continue the domino line at the top to move to another surface, or leave it the way it is.

Examples:
Here is an example of an upwall (and a downwall) by brandonc23