So, the two main things that I am seeing that aren’t accomplished from the rubric are having a “lose condition” and resetting the game to replay.
Re-set is fairly straightforward (I tell my kids to think about what the value(s) should be at the start of the game/round…and where do they see that value).
The lose condition is a bit trickier. The original game had it so that if you clicked a “background image” you lost a life (from a total of three), so I often chat with my kids about how winning and losing are similar…and different.
What it seems like your student wants to do is have a time limit, which is a bit beyond. If they are motivated to continue on this path, you might want to check out this forum post about using a timer:
Hope that helps!