stuck in level 18

[popocop]

I'm stuck in level 18. There is one room with a wall-gun and group of aliens. I always die there. How to pass?
Picture:
https://imageshack.com/i/ex6b0453j

[popocop]

More info: I'm playing "Enemy TOV Easy Play", English version, installed with WHDLoad.
The room I'm stuck in is number 14.

[André]

As soon as you touch the ground: duck!

(press joystick 2x down , in quick succession.)

l18--r14.JPG (61.86 KiB) Viewed 4392 times

Hope this helps.

[popocop]

It helped a lot!
Thank you.