Plan round 6.
Simplified test up to a point.

I still have a sense of foreboding about the future of this approach.
An actual design session.
Refactor: inital steps toward separating level from GameState
Halfway through extracting level from GameState

Ordinarily this might not seem like a great commit point, but it's a good
example of narrowing a change by supporting two parallel designs, which I
said I wanted to do more of this round.
Remove level from GameState
Tighten up randomness code.
Random kitten location! Woooo!
Showing two NKIs on the screen!
The next story was free.

In fact, negative cost, since the less ambitious version would actually have been harder to implement. An important milestone!
MVP up!
Minor refactor.
Started next story
Better game rerunner
Mildly simplify Playing state
Show Item considered unnecessary.