The classic arcade game.

The classic arcade game.

The classic arcade game.

Hold the mouse button down to go up. Avoid the obstacles.

Click to flap.

Move the mouse to avoid the obstacles.

Watch Conway's classic game of life.

Simulate evolution and gene combination.

Get three Xs or three Os in a row to win.

The original vertical strategy game where you try to get four in a row.

Circles of random size and color appear on the window.

Move the mouse to generate a water color.

Click and drag to draw circles.

Move the mouse.

Click and drag to draw lines.

A ball bounces around the window.

Select different colors and paint on a canvas.

See how long you can keep the ball in the air. Tap or click to kick it.

Click or tap to add a splatter.

Play the classic videogame built in the Sandbox by CodeHS Tutor Brandon Okumura.

Create your own music visualization!

Practice making numbers in binary.

Hide a secret image inside a cover image.

Hover image to select pixels.

Create a calendar with an HTML table.

Use CSS to style a music library.

Create and train your Pokemon.

The classic battleship game.

Fill in the blanks and laugh playing Madlibs!

Make a complex triangle with Tracy.

Play a game of hangman.

Make a starburst with Tracy.

Make a colorful rug with Tracy.

Build a castle with Tracy.