Room Generating

Hello. So in simple, im making a side scrolling game, but is there a way to enable the game to randomly generate things? Like if I were to set it, aside from the base room part, the room itself could make the rest of itself until the player dies. Example: Flappy Bird (not making a clone, just using it as an example)

There are plenty of threads about this already if you have a search.  There is even a user who has created a tutorial for the Flappy Bird system, which you could alter to fit your needs.