What I want to know is, could it be possible? Could you spawn an entity of a character from a game and have the control scheme and play style change when you activate it? Say you spawn Snake from Metal Gear Solid and hit action on it. You become that character and their controls and HUD change to be like those games.
Maybe it would require too much coding and custom animation to be worthwhile, but I thought I should share the idea anyways.
Ocarina of Time controls while fighting zombies would be awesome.
The game mode Aftermath is along the lines of what I’m envisioning, but for other game’s characters.