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Mega Man Battle Network 6: Gregar (GBA) — Price Guide & Live Deals

Live GBA Mega Man Battle Network 6 Cybeast Gregar deals across loose, CIB and sealed copies: what a fair asking price looks like and the Falzar traps.

Right now: Loose prices roughly flat over 90 days, 21 current qualifying listings.

Median ask
$51
Loose · n=18
Listings now
21
qualifying right now
90-day Loose median trend
0%
roughly flat

Current qualifying listings

As an eBay Partner, CresvaMent may be compensated if you make a purchase through the eBay links on this page. CresvaMent is not affiliated with eBay.

Mega Man Battle Network 6 Cybeast Gregar (GBA 2006) RARE Brand NEW!
Mega Man Battle Network 6 Cybeast Gregar (GBA 2006) RARE Brand NEW!
ebayBrand New

$225.00 USD

+$6.00 shipping

★ 100% · 941 ratings

Listed 2 days ago · checked 2 days ago

Mega Man Battle Network 6 Cybeast Gregar Gameboy Advance (MegaMan) (GBA) CIB
Mega Man Battle Network 6 Cybeast Gregar Gameboy Advance (MegaMan) (GBA) CIB
ebayVery Good

$199.99 USD

Shipping calculated

★ 100% · 470 ratings

Mega Man Battle Network 6 Cybeast Gregar Game Boy Advance · 10/25/2026 8:02 PM

Capcom Mega Man Battle Network 6: Cybeast Gregar GBA NTSC-U/C E Game Boy Advance
Capcom Mega Man Battle Network 6: Cybeast Gregar GBA NTSC-U/C E Game Boy Advance
ebayVery Good

$37.99 USD

Free shipping

★ 100% · 1,026 ratings

Mega Man Battle Network 6 Cybeast Gregar Game Boy Advance · 10/25/2026 8:02 PM

Game Boy Advance Mega Man Battle Network 6: Cybeast Gregar
Game Boy Advance Mega Man Battle Network 6: Cybeast Gregar
ebayGood

$30.00 USD

Shipping calculated

★ 100% · 97 ratings

Mega Man Battle Network 6 Cybeast Gregar Game Boy Advance · 10/25/2026 8:02 PM

Mega Man Battle Network 6 Cybeast Gregar - Game Boy Advance GBA - In Box Tested
Mega Man Battle Network 6 Cybeast Gregar - Game Boy Advance GBA - In Box Tested
ebayGood

$166.39 USD

Shipping calculated

★ 99.9% · 5,740 ratings

Mega Man Battle Network 6 Cybeast Gregar Game Boy Advance · 10/25/2026 8:02 PM

Mega Man Battle Network 6: Cybeast Gregar Nintendo Game Boy Advance
Mega Man Battle Network 6: Cybeast Gregar Nintendo Game Boy Advance
ebayVery Good

$40.00 USD

Shipping calculated

★ 100% · 22 ratings

Mega Man Battle Network 6 Cybeast Gregar Game Boy Advance · 10/25/2026 8:02 PM

Mega Man Battle Network 6: Cybeast Gregar Nintendo Game Boy Advance CIB
Mega Man Battle Network 6: Cybeast Gregar Nintendo Game Boy Advance CIB
ebayGood

$179.99 USD

Shipping calculated

★ 100% · 239 ratings

Mega Man Battle Network 6 Cybeast Gregar Game Boy Advance · 10/25/2026 8:02 PM

Game Boy Advance Mega Man Battle Network 6 Cybeast Gregar GBA Authentic SAVES LV
Game Boy Advance Mega Man Battle Network 6 Cybeast Gregar GBA Authentic SAVES LV
ebayGood

$49.95 USD

Free shipping

★ 99.8% · 5,245 ratings

Mega Man Battle Network 6 Cybeast Gregar Game Boy Advance · 10/25/2026 8:02 PM

Game Boy Advance Mega Man Battle Network 6 Cybeast Gregar Nintendo GBA Authentic
Game Boy Advance Mega Man Battle Network 6 Cybeast Gregar Nintendo GBA Authentic
ebayAcceptable

$39.99 USD

Shipping calculated

★ 99.9% · 12,916 ratings

Mega Man Battle Network 6 Cybeast Gregar Game Boy Advance · 10/25/2026 8:02 PM

Mega man 6: Battle Network Cybeast Gregar (Nintendo Game Boy Advance) GBA
Mega man 6: Battle Network Cybeast Gregar (Nintendo Game Boy Advance) GBA
ebayGood

$53.55 USD

+$2.14 shipping

★ 99.6% · 18,620 ratings

Mega Man Battle Network 6 Cybeast Gregar Game Boy Advance · 10/25/2026 8:02 PM

Nintendo Game Boy Advance Mega Man Battle Network 6: Cybeast Gregar GAME ONLY
Nintendo Game Boy Advance Mega Man Battle Network 6: Cybeast Gregar GAME ONLY
ebayLike New

$52.12 USD

★ 99.9% · 44,632 ratings

Mega Man Battle Network 6 Cybeast Gregar Game Boy Advance · 10/25/2026 8:02 PM

Mega Man Battle Network 6 Cybeast Gregar GBA Gameboy Advance Instruction Manual
Mega Man Battle Network 6 Cybeast Gregar GBA Gameboy Advance Instruction Manual
ebayAcceptable

$19.99 USD

Shipping calculated

★ 99.9% · 2,212 ratings

Mega Man Battle Network 6 Cybeast Gregar Game Boy Advance · 10/25/2026 8:02 PM

Roughly one qualifying listing every 30 days.

Asking-price ranges by condition

Condition Min 25% Median 75% Max N
Loose $19.99 $40.00 $50.70 $58.00 $166.39 18
CibLow sample size $179.99 $179.99 $179.99 $199.99 $199.99 2
SealedLow sample size $225.00 $225.00 $225.00 $225.00 $225.00 1

Asking prices of currently-active listings. Not sold-price data. Rows marked "low sample size" have fewer than 5 listings, so one outlier can move them a lot.

90-day Loose median trend
0%
vs 90 days ago

Is this a good price?

Enter a price to see where it falls among current Loose asking prices for Mega Man Battle Network 6: Gregar (GBA).

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How we filter

Every feed has its own filter, tuned by hand for this one game. Before any change goes live, those filters are tested against thousands of real eBay listing titles. Every night, each feed is checked against every other deal page in its category, so a listing for a different game that slips in gets flagged and fixed instead of quietly shown.

Of the 7 listings we observed for this game in the last 30 days, we filtered out 6 of 7 (~86%) for quality reasons. The remaining 1 are what we'd actually surface.

  • 3 matched a bootleg / out-of-scope keyword
  • 3 shipped from a region we exclude

What the feed excludes

An eBay search for Mega Man Battle Network 6: Gregar (GBA) returns far more than the game itself: controllers, T-shirts, strategy guides, imports and repro carts all mention it in their titles. These are the 94 terms we filter out to keep this feed to the real thing. A listing whose title contains any of them never reaches the feed, the price table or an alert. Many look unrelated to Mega Man Battle Network 6: Gregar (GBA) because they are: that's the noise.

Other titles & look-alikes 7
  • -rockman
  • -falzar
  • -battle chip
  • -chip gate
  • -star force
  • -re-po
  • -exe
Bootlegs & repros 5
  • -custom case
  • -repro
  • -reproduction
  • -aftermarket
  • -repo
Broken, untested & empty listings 15
  • -for parts
  • -not working
  • -non-working
  • -non working
  • -broken
  • -as is
  • -as-is
  • -untested
  • -doesnt work
  • -does not work
  • -not tested
  • -parts only
  • -no game
  • -game not included
  • -cart not included
Imports & regions 7
  • -japanese
  • -ntsc-j
  • -famicom
  • -jpn
  • -jp
  • -pal
  • -japan
Lots & multi-item listings 8
  • -lot
  • -bundle
  • -collection
  • -set of
  • -multiple games
  • -3 games
  • -4 games
  • -5 games
Accessories, merch & paper 52
  • -controller
  • -headset
  • -headphones
  • -plush
  • -figure
  • -figurine
  • -keychain
  • -sticker
  • -charger
  • -cable
  • -adapter
  • -backpack
  • -wallet
  • -shirt
  • -hoodie
  • -jersey
  • -poster
  • -art book
  • -artbook
  • -soundtrack
  • -vinyl
  • -statue
  • -amiibo
  • -funko
  • -pop figure
  • -mousepad
  • -lanyard
  • -badge
  • -trading cards
  • -tcg booster
  • -bookmark
  • -instruction booklet
  • -promo item
  • -promotional
  • -insert only
  • -flyer
  • -pamphlet
  • -display card
  • -demo cart
  • -kiosk
  • -case only
  • -case-only
  • -clamshell only
  • -box and case
  • -replacement box only
  • -manual only
  • -box only
  • -nfr
  • -hat
  • -pin
  • -ost
  • -art

How often qualifying deals appear

  • 1 in the last 7 days (~0.14/day)
  • 1 in the last 30 days (~0.03/day)
  • 1 in the last 90 days (~0.01/day)

Battle Network 6 Gregar: collector & reseller spec sheet

  • Which game this is. Mega Man Battle Network 6 is a Capcom Game Boy Advance release that shipped as two versions, Cybeast Gregar and Cybeast Falzar. This page tracks the Gregar version only. It follows Mega Man Battle Network 3 Blue in the series.
  • Save mechanism & product code. Check that the label's product code matches the US release. We don't state the exact code or save type here, because it is a known confusion zone. A cartridge this old can lose its saved data, so ask the seller for a photo of the file screen.
  • Print variants. We can't name a distinguishing mark for reprints with confidence. Compare label and back-of-cart photos against a known-authentic copy before paying a premium for a "rare" listing.
  • Listing traps seen while tuning. Falzar and Gregar double lots turn up, so read the title and photos to see which cartridge you get. Manual-only listings carry the full game name, and their asking prices can look like a cartridge deal. Sellers write "Megaman 6 Battle Network" as well as "Battle Network 6", so word order varies.

Buying Game Boy Advance games: what to check by condition

These checks apply to every Game Boy Advance cartridge. The item notes above cover what is specific to this game.

Loose

  • Compare the label, shell color and front/back markings against a photo of a known-authentic cart. Repro labels are often glossier, blurrier or slightly off-color.
  • Ask for a photo of the board or the back of the cart. An opened shell is not automatically bad (battery swaps are normal), but it should be disclosed.
  • If the game saves to a battery, ask whether the save holds. Old save batteries fail with age regardless of what the listing says, so budget for a replacement.

CIB (complete in box)

  • Confirm the box, manual and inner tray or insert are all shown in the photos, not just listed in the title.
  • Check that the box and manual are the same region and print as the cart. Mixed-and-matched "complete" copies are common.
  • Box wear (crushing, tears, sticker residue) moves price far more than the cart does. Judge it from photos, not from the word "mint".

Sealed & graded

  • For a graded copy, look the certification number up on the grading company's own site and confirm the photos match the slab you are buying.
  • For an ungraded sealed copy, compare the wrap and seal pattern against a known factory-sealed example. Resealing is common, and a reseal on a loose game is worth a loose price.
  • Ask for photos of every side, the seams and any price stickers. Refusing extra photos on a sealed listing is a red flag on its own.

FAQ

How much is Mega Man Battle Network 6: Gregar (GBA) worth right now?
CresvaMent's daily eBay index puts the median asking price for Mega Man Battle Network 6: Gregar (GBA) in Loose condition at $51 across 18 active US listings (November 6, 2026 snapshot). Asking prices, not sold prices.
How do I get notified when a new Mega Man Battle Network 6: Gregar (GBA) listing comes in under my price?
Live eBay listings for Mega Man Battle Network 6: Gregar (GBA) are at cresvament.com/deals/gba/mega-man-battle-network-6-cybeast-gregar, and CresvaMent can alert you by Discord or email when a new one is listed under your max price (free for one tracker).
How often do qualifying deals appear?
In the trailing 30 days, 1 qualifying listings appeared — roughly 0.03 per day.
Is Mega Man Battle Network 6: Gregar (GBA) reproduced or commonly faked?
In the last 30 days we excluded 3 listings for matching reproduction / out-of-scope keywords. The article above covers what to look for when verifying authenticity.

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Data freshness: last snapshot 2026-11-06 00:01 UTC . Atom feed

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