The document discusses user interfaces in video games that were designed with Adobe Flash. It notes that it was difficult to find which specific games used Flash-based HUDs due to incorrect search terminology. It then describes discovering a company called Scaleform that provides software to display Flash UIs and HUDs in games. The document lists Batman: Arkham Asylum as a game with a liked Flash-based HUD and DC Universe Online as a game with a disliked Flash-based HUD.