Projects marked with an asterix* are accompanied by a worksheet for pupils. You can access these here. You can also find all projects on Scratch here: https://scratch.mit.edu/studios/5835762/ (plus a number of extra activities).
Explore how the bat maze works, uses a variable to track lives. Put the code together to create a working project in the Modify version. The Debug project has three errors to correct. Version 2 uses arrow buttons to move the bat instead of keys.
Explore how to draw complex shapes using variables to determine the number of sides and petals. Version 1 has set values, version 2 asks the user to set the number of sides and petals, and version 3 has code which determines what answers can be accepted.