You enter a UPC and based upon which product UPC you enter you are taken to a room.
After going to the room, you must wait for the room activity to load. (Don't press the arrow to leave the room.)
After the load is finished, you are offered the instant win option.
After the instant win chance, each room has a different "game" to play. The Skittles room was a game of "War" with a skeleton. Another room has you put a suit of armor back together.
You can move to different rooms to play different games but you are only offered the chance to win upon entry into that first room. Be sure to WAIT for things to load. Loading is slow, even on a very fast net connection.