Metal Slug Rampage

Description:
One of the best coin-op games of all time is back in flash form. Shoot your way to fun.
How to play:

Army Copter

Description:
Your main mission is to neutralize as many enemy units as you can to succeed in your mission. You may also wanna pick up some bonuses dropped by parachutes to help you on your mission.
How to play:
Arrow Keys - Movement.
Spacebar - Shoot.

Crusader Tank

Description:
You control a tank. You need to get to the end of the level destroying as many enemy units on your way as possible. Pick up bonuses and health packs, They are going to help you on your mission.
How to play:
Use Arrow Keys to move
Use Mouse to aim the cursor wherever you want to shoot
Use Left mouse button to shoot

Tank Defense 2

Description:
Blast your way to victory on big fat metal treads! Up your armor and firepower as you go. After all, the best Tank Defense is a strong Tank Offense!
How to play:
WASD / Arrows keys- To move.
Space bar- Place mines.
Mouse- Aim and Shoot.

3D Tanks

Description:
Your mission is to not let the enemy tanks overwhelm our defences! Avoid shooting medic and nuclear trucks, but stop money trucks to earn cash. You will be able to upgrade your weapons upon completion of missions. Good luck!
How to play:
Arrow Keys - To control weapon.
Spacebar - Shoot.
W - Choose available weapons.

DestructoTanks

Description:
Drive your tank around, blow through the barriers, and then blow away those enemy tanks shoot you.
How to play:
W, S, A, D - Drive the tank.
Mouse - Aim / Shoot.