TMNT II: Back from the Sewers (Game Boy) — Price Guide & Live Deals
Live Game Boy TMNT II: Back from the Sewers deals: loose, CIB and sealed asking prices, plus the manual-only and graded listings to watch for.
Right now: Loose prices roughly flat over 90 days, 48 current qualifying listings.
Current qualifying listings
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Konami Teenage Mutant Ninja Turtles II: Back From The Sewers Game Boy 1991
$19.99 USD
Shipping calculated
★ 100% · 312 ratings
Listed yesterday · checked yesterday
Back From The Sewers Ninja Turtles TMNT Gameboy CIB Complete Box Authentic
$228.15 USD
Free shipping
★ 100% · 10,587 ratings
Listed 2 days ago · checked 2 days ago
Teenage Mutant Ninja Turtles II 2 Back From The Sewers Gameboy Game Cartridge
$21.95 USD
Free shipping
★ 100% · 10,587 ratings
Listed 2 days ago · checked 2 days ago
Teenage Mutant Ninja Turtles II Back From The Sewers - Nintendo Game Boy
$15.50 USD
Shipping calculated
★ 100% · 416 ratings
Listed 2 days ago · checked 2 days ago
Teenage Mutant Ninja Turtles II: Back from the Sewers (Game Boy, 1991) Authentic
$15.49 USD
★ 99.9% · 786 ratings
Listed 3 days ago · checked 3 days ago
Teenage Mutant Ninja Turtles 2 Back From the Sewers - 1991 Game Boy - TESTED!
$22.99 USD
+$5.95 shipping
★ 100% · 2,924 ratings
Listed 6 days ago · checked 6 days ago
*Asia English version* Ninja Turtles II Back from the Sewers Game Boy authentic
$29.99 USD
Free shipping
★ 100% · 3,268 ratings
Listed 7 days ago · checked 7 days ago
Teenage Mutant Ninja Turtles II 2 - Back from the Sewers - Gameboy - Tested
$18.50 USD
★ 99.9% · 2,285 ratings
Listed 8 days ago · checked 8 days ago
Teenage Mutant Ninja Turtles II Back From The Sewers GameBoy Game CIB
$189.99 USD
Free shipping
★ 100% · 762 ratings
Listed 10 days ago · checked 10 days ago
Teenage Mutant Ninja Turtles 2 Back From the Sewers Gameboy
$30.00 USD
Shipping calculated
★ 100% · 56 ratings
Listed 11 days ago · checked 11 days ago
Teenage Mutant Ninja Turtles II: Back from the Sewers – Game Boy
$18.50 USD
★ 100% · 30 ratings
Listed 13 days ago · checked 13 days ago
TMNT II Back From the Sewers Nintendo Game Boy 1991 Tested w/ Manual & Case
$39.99 USD
★ 99.8% · 1,788 ratings
Listed 14 days ago · checked 14 days ago
Roughly one qualifying listing every 2.5 days.
Asking-price ranges by condition
| Condition | Min | 25% | Median | 75% | Max | N |
|---|---|---|---|---|---|---|
| Loose | $14.95 | $19.99 | $22.79 | $26.99 | $49.99 | 62 |
| Cib | $189.99 | $228.15 | $239.99 | $280.15 | $349.99 | 6 |
| SealedLow sample size | $2,700.00 | $2,700.00 | $2,700.00 | $2,700.00 | $2,700.00 | 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.
Full asking-price history by condition →
Is this a good price?
Enter a price to see where it falls among current Loose asking prices for TMNT II: Back from the Sewers (Game Boy).
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 14 listings we observed for this game in the last 30 days, we filtered out 2 of 14 (~14%) for quality reasons. The remaining 12 are what we'd actually surface.
- 1 wrong condition (e.g. parts-only)
- 1 matched a bootleg / out-of-scope keyword
What the feed excludes
An eBay search for TMNT II: Back from the Sewers (Game Boy) 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 100 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 TMNT II: Back from the Sewers (Game Boy) because they are: that's the noise.
Other titles & look-alikes 11
- -manhattan
- -fall of the foot clan
- -hyperstone
- -tournament fighters
- -turtles in time
- -re-po
- -iii
- -iv
- -nes
- -snes
- -genesis
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 8
- -japanese
- -ntsc-j
- -famicom
- -pal
- -jpn
- -jp
- -eur
- -japan
Lots & multi-item listings 9
- -lot
- -bundle
- -collection
- -set of
- -multiple games
- -3 games
- -4 games
- -5 games
- -2 games
Accessories, merch & paper 52
- -controller
- -headset
- -headphones
- -plush
- -figure
- -figurine
- -keychain
- -sticker
- -charger
- -cable
- -adapter
- -backpack
- -wallet
- -shirt
- -hoodie
- -jersey
- -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
- -nfr
- -hat
- -pin
- -ost
- -art
- -manual
- -poster
How often qualifying deals appear
- 6 in the last 7 days (~0.86/day)
- 12 in the last 30 days (~0.4/day)
- 12 in the last 90 days (~0.13/day)
Back from the Sewers: collector & reseller spec sheet
- Release: Konami's 1991 Game Boy sequel to Fall of the Foot Clan. Sellers write the title many ways ("TMNT II", "Turtles 2", "Sewer" singular); the feed matches all of them.
- Product code & save mechanism: check that the product code on the label matches the US release. We haven't verified the exact code or any save feature, so don't pay extra on a seller's claim about either.
- Print variants: retail print runs and label variations may exist, but we can't name a distinguishing mark with confidence. Compare label, font and copyright text against a known authentic photo before paying extra for a "rare" variant.
- Listing traps seen in this feed:
- Manual-only listings carry the full game title and sit near cartridge prices. Confirm the listing says cartridge or game included.
- Graded sealed copies list in the thousands of dollars asking, far above the circulating-copy range. Treat them as a separate market from loose and CIB.
Buying Game Boy games: what to check by condition
These checks apply to every Game Boy 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 TMNT II: Back from the Sewers (Game Boy) worth right now?
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Is TMNT II: Back from the Sewers (Game Boy) reproduced or commonly faked?
More from this franchise
More Game Boy deal pages
Data freshness: last snapshot 2026-11-06 00:01 UTC . Atom feed