"Nightmare" Flash game playthrough
A game by the Super Flash Bros. Adam Vian and Tom Vian, released September 2003. Play it here: https://superflashbros.net/2009/02/22/nightmare/
https://www.newgrounds.com/portal/view/122022
A simple little flip-screen run-and-gun drawn entirely in squiggle-vision, with a suitably surreal dream-like atmosphere. Romp through three areas and pick up new weapons along the way, dealing with a variety of enemies.
Beating the game unlocks a fourth weapon, as well as a "Duck Hunter" survival mode.
Apologies for clicking outside the screen and showing my Bandicam window on occasion.
You seem to lose partial control when taking damage, or the left and right keys become unresponsive. A lot of things are kind of finicky and unreliable, so it's hard to tell if it's a bug or a feature.