For your consideration is one used, tested and working game.  Tested on an Atari 7800, and 7800+.  
 
Space Invaders for the Atari 7800 brings home one of the most influential arcade games of all time, faithfully recreating the action of Space Invaders. Simple in concept yet endlessly addictive, it’s a true cornerstone of classic gaming.
 
You control a laser cannon at the bottom of the screen, tasked with defending Earth from waves of descending alien invaders. Using precise timing and steady aim, you must eliminate each formation before they reach your position. As the number of invaders decreases, their speed increases—intensifying the challenge and keeping you on edge.
 
Protective shields offer temporary cover, but they can be worn down by both enemy fire and your own shots, forcing you to think strategically about when to attack and when to defend. Periodically, a mysterious bonus saucer flies across the top of the screen, offering extra points for skilled players who can hit it.
 
With its iconic gameplay loop, escalating tension, and timeless appeal, Space Invaders on the Atari 7800 delivers a pure arcade experience that remains just as engaging today as it was at its debut.
 
 
Refund Policy
 
All items are guaranteed to be fully functional as described. If an item is found to be nonfunctional, a full refund will be issued upon return of the item and verification of the issue. Please note that refunds will only be granted if the item is returned in its original condition, with no components altered, removed, or replaced.
 
Shipping Policy
 
Domestic orders are shipped via USPS Ground Advantage.
In an effort to reduce waste, we may reuse and repurpose boxes and packaging materials whenever possible. All items are securely packaged and shipped in a box to ensure safe delivery.