Chikyū Kaihō Gun ZAS
Game Boy · 1992
About this game
It's the 21st Century, and mounting pollution has forced Earth's population to flee for Mars.
Since that time, Earth has been uninhabited... until one day, super-intelligent robots from another galaxy descended on the planet and took over.
↓ Read more
While the robots did manage to solve Earth's pollution problem, they have done something else that may not be just as magnanimous: they have reshaped the Earth in their own image! Now, an ad hoc liberation army sets forth to rid the planet of these mechanical maniacs and make the Earth safe for humans again.
Chikyū Kaihō Gun ZAS is a shoot-em-up game in which a single player must shoot his/her way through 5 integrated stages of mayhem to save the Earth from the robot invasion. (The player can choose to start playing on any one of the first four stages, but can only access the final stage by starting from level 1 and fighting through level by level.) While the player only has a single weapon (which can upgraded) and a shield, he/she is assisted by a pair of guns that can be moved in a straight line from the ship, giving him/her more firepower when combating the enemies.
Plus, the player can detect approaching enemies from the background.
And the player will need every one of these advantages, because timing is key if the Earth is to be saved!
About Game Boy
The original Game Boy (1989) proved that handheld gaming didn't need cutting-edge graphics to succeed — its monochrome screen and legendary battery life, combined with Tetris as a pack-in, made it a cultural phenomenon. Game Boy cartridges are famously durable, so this remains one of the more accessible retro platforms to collect, though translucent color variants and complete-in-box copies with the original brick-sized manual add real value for condition-focused collectors.
Gamevaro tracks Chikyū Kaihō Gun ZAS for Game Boy with separate market values for loose, complete-in-box (CIB) and factory-sealed copies, sourced from real eBay sales. Prices also vary by region — PAL, NTSC-U and NTSC-J releases of the same game often sell for different amounts due to print run sizes and regional collector demand.
Adding Chikyū Kaihō Gun ZAS to a Gamevaro collection takes seconds — search by title or scan the box barcode, and the app fills in cover art, release details and current pricing automatically. This GB release dates back to 1992.
Market values by condition
NTSC-J
Recent sales
| Date | Type | Region | Price |
|---|---|---|---|
| 2026-08-13 | Loose / Item only | NTSC-J | €1307.49 |
Rarity & condition
Only a handful of market sales have been tracked for Chikyū Kaihō Gun ZAS, suggesting it doesn't trade hands very often — a sign of relative scarcity compared to more common Game Boy titles.
Complete-in-box (CIB) copies typically command a premium over loose cartridges/discs because the original box and manual are more fragile and get discarded or damaged over time — fewer complete sets survive.
Frequently asked questions
How much is Chikyū Kaihō Gun ZAS worth?
Chikyū Kaihō Gun ZAS for Game Boy is currently worth €1307.49 loose. Prices are based on real sales and update regularly on Gamevaro.
Is Chikyū Kaihō Gun ZAS rare?
Chikyū Kaihō Gun ZAS has only a handful of tracked market sales, suggesting relative scarcity compared to more common Game Boy titles.
What's the difference between loose, CIB and sealed for Chikyū Kaihō Gun ZAS?
Loose means cartridge or disc only, CIB (complete in box) includes the original box and manual, and sealed means factory-sealed and never opened. These are tracked as separate market values because the price gap between them can be significant, especially for older releases.
Ratings & Reviews
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