Instead of getting on with that some of the students critically analysed my game design from their perspective. It was light hearted but many of the features were described as "crap".
For instance, I had given the player a configuring option where they could set their own background colour or alternatively a tiled image. But once they had set an image, they couldn't go back and reset the colour, the image wouldn't go away. Also if they set the background colour to red then the red writing on the page could no longer be seen.
All of this is happening because I am using Game Maker and games are a medium with which these students feel confident and more or less expert. They are engaged.
From my perspective, I found their light hearted but vigorous criticisms very motivating. That night I spent a fair bit of time going through all their criticisms (I identified seven) and improved the game significantly.
This made me think that if I could help create a similar environment for my students later in the year where they could critically analyse their own games then it's likely that this would be a growth experience for them as well.