Pepsi Invaders (Atari 2600)

Another legendary game has appeared on eBay: Pepsi Invaders for the Atari 2600. It's a Space Invaders variant commissioned by Coca Cola, where the rather traditional aliens have been substituted by the letters P, E, P, S and I, and players, using their infinite lives have to kill them all in less than 3 minutes. So far, so unspectacular. Still, only 125 copies of the game have been known to exist as it was only released -without a proper box- in a 1983 convention and given only to the 125 sales executives attending it. You can find out more about it and download a working ROM here  and you can bid on it here. Seller ships only within the United States.

Impossible Mission C64

One of the best and most demanding Commodore 64 games ever, Impossible Mission, can be grabbed via this auction, provided you're fast enough. Seller ships worldwide. To play an emulated version just click and download the game.

Playful Intelligence Commodore 64

A Commodore 64 still boxed in its original Playful Intelligence box might not be incredibly rare, but it still is a beautiful sight for any retro gaming lover. After all it comes with a cartridge sporting 4 games, one Commodore joystick and -most important of all- a Commodore GS Software Manual (well, ok and a proper C64 one too). Oh, and you can grab one complete in its box via eBay. Seller only ships within Europe.

The Laffer Utilities

I remember buying this one ages ago and simply knowing it was the most obscure Leisure Suit Larry offering I'd ever own. Not incredibly rare mind, just obscure, as The Laffer Utilities (version 4.01, no less) was published by Sierra and was nothing more than a lovely collection of DOS-based anti-productivity utilities packed in a brilliant little box. Interestingly, Amazon got a copy. Grab it!

Atari 2700 RC Stella Prototype Console

This one will be expensive, but so very unique you simply have to have a look. It is after all an auction for the truly Atari 2700 RC Stella prototype, the forgotten and very Atari 2600 variant with the wireless joysticks and the radical redesign. Oh, and seller does indeed ship worldwide.

Amiga 1200 with hard disk

The ultimate gaming machine has to be an Amiga 1200 with a 2.8GB hard disk, and this is exactly what you can grab via this (UK only) auction. As for me, well, I don't really think I have to elaborate on the matter.

Akira (Nintendo Famicom)

Haven't played it, but Akira for the Famicom is both an adventure game and based on the excellent Akira film. You can grab it via Play Asia, where -happily- it's on sale!

The Vectrex Arcade System

Ah, dear Vectrex, beautiful as ever I see and still sporting your amazing monochrome vector graphics. Gamers looking to grab you complete with an excellent selection of games and goodies can try this auction, you know. Seller ships only within the USA, and has been kind enough to bundle 15 games, two controllers and a variety of other lovely bits the console. As for you dear readers, don't expect to pay much less than 400$ though. The Vectrex is quite a rarity, but one definitely worth the money you'll pay for it. 

Sega Master Gear Converter

We all know that Sega's Game Gear is in fact an updated and obviously handheld Master System, but that isn't really helpful. We still need Sega's Master Gear Converter to play SMS games on the thing and you can grab one of these lovely little accessories, complete in its original box, via this eBay auction. Seller ships worldwide.

Metal Slug 5 (Neo Geo AES)

Neo Geo AES games can get very expensive and Metal Slug 5 even more so. It remains of course a great game, a classic perhaps, and one you can own for quite a few hundred dollars, euros or pounds. For a complete boxed copy you could try this auction. Seller ships worldwide.

Radiant Silvergun (Saturn)

Possibly the most famous shooter for the SEGA Saturn. Grab a copy of Radiant Silvergun for the Japanese Saturn via eBay. Seller ships worldwide.

A Speccy +2 from Amstrad

I still believe the Amstrad produced ZX Spectrum +2 to be an excellent choice for retro gamers. It's a cheap 128k Speccy you can connect to a monitor, won't set you back a fortune and comes in a pretty compact form. European residents can even grab one for the very good Buy It Now price of £34.99 via this very eBay link. The computer comes with all necessary bits to get it working, a boxed joystick, the manual and a selection of original games. These include the excellent Popeye and personal favorite Oh Mummy.