how would I make seperate scrolling objects?

Hello, recently I've had an idea for a game but I can't quite seem to get this one thing that limits me entirely. If I was able to do this, the rest of the game would be a breeze, but as of now this a huge barrier. The game is going to be using prerendered graphics for the main room, and a sort of minigame would be playing on the TV. What I'm trying to do, is have the user be able to actually look around the room with the mouse, while playing the game on the TV in the background. Getting the TV image to scroll? works perfectly fine. Getting the minigame to scroll? perfectly fine. But when I try to do both, I can't find a single way to do it. The best way I can explain it, is that the minigame would be a kind of sub-application (I've never used sub-applications, nor do I understand how. The game is being exported as an .exe and I haven't found any kind of decent coverage on sub-applications.) And so while your looking around the room, its keeping the minigame in the TV (which would be a transparent image so you can see through it) while still keeping the scrolling seperate on both.