Use the W A S D keys to move.
Move your mouse around to aim and left click to fire.
In the real/completed game you will be able to interact with enemies by shooting them and getting hit by them.
The health, ammo and antidote pickups will also work fully.
At its current stage the level scrolls a bit, but when completed there will be much more of the level. Some of the environments include shopping centers, pubs and the obligatory graveyard scene!
Also, the timer and scoring system will work, as with the health and ammo depletion/increase.

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Great thanks to-

Robert Worman
and
Alex Birch
of GamesGamesGames.co.uk
for the Action Script!