Just a thought, but if you want a nice set that will be able to be used time and again, get a project box and a through-hole perforated solder board. Point to point soldering is not very difficult, especially for the simpler projects. Get some nice connectors so that you can plug your game unit into your arduino easily (one hard wired to your project and the other end a pig-tail for your arduino with tags for easy re-connection). Also, a nice soldered and housed unit will hold together well during storage, as opposed to leaving your project on a solderless breadboard.