Trying to find title of old arcade game

[wireitnow]

I used to play this one game alot and cant think of the name of it. It was unique since it was an overhead view game that took place in a building. You had to shoot all sorts of baddies and when they shot down the hall at you, your defensive move was to flatten out against the wall. this took the place of the typical scrolling game's duck feature. Any help with this title would be great.

[AznKhmerBoi]

I wanna say time crisis, but thats really not too old and its more of over the shoulder.

[ExedExes]

Would it be Crack Down (Sega 1989)?