Design Adding a Minigame in a game?

[ArudanIsMe]

I know its somewhat possible to add like say, you make main player go to an arcade and they play an arcade game.(pretty much adding a minigame in an rpg) Can someone tell me how Im supposed to do that? it would be one of those minigame where music plays and you try to match up to one of the beats(like one of those android games or dance dance revolution but you use the keyboard instead or so. going to the beat.) and when player wins, they get rewarded with a certain item basic to high score.

 

[Yal]

Easiest way: go to a different room, that room uses a set of "minigame" objects. Only objects you add to a room are present when you are in it.