Chopper

The Chopper is a stage hazard exclusive to The Penthouse.

Appearance
It is a Gunship that has two sets of main blades, square windows, a pair of front of hind wings, with the front wings having a pair of autocanons attached to them, as well as what appears to be twin missile launchers.

Description
The Chopper makes it's first appearance in a hallway with 3 large windows, where it opens fire at the protagonists from the background, and it can also instantly kill whatever enemies are unfortunate enough to be hit by it's gunfire, but not the protagonists.

The Chopper reappears during the scuffle with The Premier, if he is allowed to escape. The Chopper will appear in a window and open fire on the protagonists, this time much more powerfully, being able to kill a protagonist in a matter of seconds.

Stage Hazard Behavior
It will hover in place, moving from left to right to try while trying to aim for, then mow down the player characters.

Trivia

 * Judging by it's two blades stacked on top of eachother, and it's square windows, it is most likely meant to be a Kamov KA-50.