Today you will load your hand gesture model into a rock, paper, scissors game in Scratch, and play against the computer.

Have your model's link ready: you will start a new project and build the game step by step, testing it as you go.

We will build the game in Stretch3, a free version of Scratch that has the extension we need.

1. Go to stretch3.github.io. A new Scratch project opens.
2. Delete the cat sprite: click it in the sprite list, then click the small bin icon on its corner.
3. Click the Extensions button in the bottom left corner of the screen and choose TM2Scratch (not TMPose2Scratch or Posenet2Scratch).

Add a new sprite to the project that will represent the computer's choice in the game. You can choose any sprite you like, but for this example, we'll use the 'Gobo' sprite.

Create two new variables:

• playerChoice - to store the player's choice.
• computerChoice - to store the computer's choice.

Leave the tick box beside each new variable ticked, so both show on the stage while you play. That is how you will see what the computer picked: 1 is rock, 2 is paper and 3 is scissors.