Let it Hit

A Bat, It is small, fast and hard to hit.

It has a Target to Hit number of 5, a Difficulty to Hit number of 7 and 2 Hit Points.

You need to score 5 to 7 points to hit it. 

However, If you Exceed the 7 Difficulty to Hit number, then you have missed.

The Bat has 2 Hit Points, so you will need to hit it twice to defeat it.

A 1 is always a miss.