Bug Hunt

    Tap the arrows above to add blocks.

    What are you learning?

    Bugs

    A bug is a mistake in a program. Even grown-up coders make them every day!

    Test it

    Run the program and watch. Where does it go wrong? That is where to look.

    Fix one thing

    Change one block, then run it again. Small fixes are easier to check.

    Watch the loops lesson More games