Half-Life Demake

The verb that I chose to develop is "avoid", as you are to avoid the aliens as you navigate around the screen and make it to the trigger point (or points) that will take you to the next level.

Here are two questions that I would like to have answered regarding the playability of the game:

1. Is the game engaging enough for you, or what should I improve to make it more engaging?
2. How well do you think I have developed the verb for the game, and if it is not developed enough, how could I improve on that?