Man I used to love my colecovision.  We had the same thing you do plus another controller called a roller controller.  It was like a poolball sized track ball.  I remember playing slither with it.  Mouse trap was probably my favorite game though.  We also had this game called WarGames that made no freaking sense.  Still to this day I have no clue what the hell was going on, all I remember is you played as a little Russian Hammer and Sickle symbol.