Update with "Focus!" screen

I have uploaded an updated version here: Good Boy... just very hungry

It contains an extra screen for the time/accuracy minigame with the arrow, shown as "Focus!". It is an attempt to reduce the noise (the Human is paused and only the Player and The Tasty Food is visible) and make it more clear that accuracy counts.

There are some minor bug fixes still pending, and a game breaking one - though it breaks the game in favor of the Player.