As ever you are in command of the last fighter and have been given the task of defending the earth.
But even though the scenario may sound familiar, the enemy isn't. Instead of the usual galactic being intent on destroying the Earth, the Devil himself has supposedly unleashed the hordes of Hell.
You are given a choice of six skill levels which determine both the start level and the type of missile fired by your ship. Even numbers give a missile that flies straight up. Odd numbers allow you to move the missile left or right with the joystick, something that I found very difficult because while you concentrate on guiding your missile to its destination, your man usually ends up underneath an enemy's bomb.
Devil Assault has three attack waves. First on the attack are vampire bats. Instead of blowing up when hit, they split into two, to cause twice as much trouble.
Next come the Crazed Robots. These march down the screen dropping bombs as they go.
In the final wave, the cute looking Sproings appear. They bounce around the screen trying to stomp on your base. When hit, a Sproing may release a little Sproing which tries to make it to the top of the screen.
Devil Assault is basically just another shoot-'em-up game with some original nasties. All the graphics are large and well animated, a pleasant change from the usual character-sized aliens that are impossible to hit. A very playable game, albeit in questionable taste.