I really enjoyed your game, this remake really lives up to the original flash one. I like how you expanded the scenarios (I suppose there isn't a particular canon one? are all the scenarios canon?) kinda intrigued to know why the apples are forcing the oranges to play for their lives. I also like the small detail that it you don't choose an action for a while the screen zooms out to show the apples (I think you could make it so the apples start pointing at you and then Shot you if you decide to prolong the game too much)
There are many layers of secret lore with Orange Roulette, but I adhere to the George Miller 'loose lore' strategy. Current canon is oranges being held captive for a sinister game by the evil apple overlords. The orange main character seems trapped in a recurring nightmare or losing his sanity as his opponents become more surreal, the scenario changes, and so on. Can he truly escape? Will the game developer finally add a slightly more happy ending? Only time will tell!