Here's another fun, easy baby game. Okay, it's not really a game, but my 3-month-old enjoys it!
We lay next to eachother on a bed in a well-lit room (I prefer to open a window and use natural light). I then pull a thin, light colored blanket over us and hold it up like a tent. My baby enjoys looking at the colors of the blanket, as well as kicking it, touching it, and pulling it.
Just another idea for those like me who have a hard time "playing" in the traditional way!