When making the Roll a Ball game, we started in unity making the ball that would move (the player) and a simple plane with walls to keep theplayer within bounds. Then we made a cube (the pickup) and set it to rotate and delete itself when hit by the player. The pickup is a prefab meaning that if we can paste it into the game and have multiple copies all rotating and being picked up the same way. Then we went into 3D Studio and made a game area that was much more involved with different levels and different objects the the pickups could be put on of in. (I had tubes and things the cubes would sit on with a second smaller level that you had to go up onto) We also did a small portion in Photoshop by making a material for the game area with text and a photo. Wince the cube is a prefabe we could just drop it in wherever we wanted. The slideshow to the left goes into more details involving the scripts in the game.