Bubble Trouble, Zombie Infestation: Strain 116

Game Info - Classic old school game run around and shoot your harpoon at the dangerous bubbles to break them down.
Game controls - Player 1.
Left / Right Arrow - Move.
Spacebar - Shoot.
Player 2.
A / C - Move.
w - Shoot.

Game Info - A zombie hunter is never out of work, huh? A huge underground complex is swarming with zombies. Some of them are extremely dangerous. Fortunately, powerups and big fat guns abound. FTW!
Game controls - WASD or arrow keys to move.
Shift to run; mouse to aim and fire.
1-5 to switch weapon.
R to reload.
Spacebar to open doors and pick up items.
X = medkit.
C = armorkit.
M = minimap.
P = pause