I finally found it! Serious Sam: The Bird Encounter
Here is its eulogy, a collection of the kind words written about it while still among the living. They shall live on forever in its place.
THERE ARE 5 DIFFERENT WEAPONS, stop saying one gun is boring. check the ingame bar at the bottom
Use your mouse to aim and shoot, SPACE to buy ammo. Use the menu at the bottom to buy weapons and also ammo. use P to pause game. Only 3 pauses allowed.
4 different types of enemies.
5 different guns.
40 differnt text and sound quotes by John Dick
The EVIL bird flu has infected most of the world. The only way to protect your country is by making sure no birds or humans get in. With other words: Shoot the crap out of them!
ENJOY!
My god I stressed on this, first I found out that it didnt work on mac's of some weird reason, then I had redo the code, I did it in only 5 min. But now the compications was really pooring in, I was sweating like hell trying to fix this watching its score fall and fall and fall...