Through years of playtesting, we learned that there were a number of pain points using the green Play Block. The game development team has refined Coding Awbie to no longer require it.
The new core set of blocks does not require the Play Block (Coding Awbie), the Caution Block (Coding Awbie), or the Mo & Awbie Blocks (Coding Duo) to play the games. These blocks are no longer needed or included.