A Dying Hope

A deadly zombie virus has gone out of control and is spreading across the whole world! You are the one who is tasked to recover all the items required to make a cure. Progress through each level and collect all the items, then return to the van to move onto the next level. You are humanity's last dying hope.

On the top-left you will see the number of secret items you have found. Glowing suitcases contain different weapons.  The image on the top right shows the object that you have to find in order to complete the level.

If you shoot or walk into a room you can see inside of it. There's one weapon box per level (which contains a unique gun) and there are 2 secret items in the first level and another 2 in the second (I ran out of time and forgot to put any in the third).

Controls:
A - move left
D - move right
E - interact
Space - jump
Left Click - shoot
Escape - pause menu