David Crane's Pitfall!, a game developed and published by Activision in 1982, is an excellent, genre defining offering that did some amazing things with the Atari 2600 hardware and remains both technically impressive and highly playable to this very day. It also sports some truly lovely box art, but so do all of Activision's early games.
To enjoy it in its original cartridge form and grab a lovely collectible for your game-shelf, you can bid on this Pitfall! (Atari 2600) eBay auction. It's the International Edition of the things and comes in its box with manual. Seller ships worldwide.