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Thunder Force II (Genesis): PSA Pop Report & Prices

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PSA has graded 10 Thunder Force II Sega Genesis copies on record — 4 CIB, 6 sealed. Sealed copies trade in the $118 range. This page is the per-game pop + price + grading reference for Thunder Force II on Sega Genesis — updated weekly from PSA’s official population data and PriceCharting’s market catalog.

Quick Facts

• Title: Thunder Force II

• Console: Sega Genesis

• Variants tracked by PSA: 1

• Total PSA-graded copies: 10 (Loose: 0 · CIB: 4 · Sealed: 6)

• PriceCharting market data: available

PSA Pop by Condition

PSA tracks Thunder Force II populations independently for loose carts, complete-in-box (CIB), and factory-sealed copies — collectors price each condition separately because rarity and demand diverge sharply. Tables below show the grade-tier breakdown per condition, aggregated across 1 variant PSA recognizes for this title.

Loose Cartridge

PSA hasn’t graded any loose copies of Thunder Force II for Sega Genesis yet.

Complete in Box (CIB)

Total graded: 4

Factory Sealed

Total graded: 6

Sealed summary by variant:

Factory Sealed Grade × Seal Matrix

Rows show PSA numeric grades. Columns show seal grades. Cell values are PSA population counts. Aggregated across all variants. Top observed grade: 9.8 (PSA scale extends to 10).

Current Market Prices

All prices below come from PriceCharting’s public catalog as of this page’s last update. PriceCharting calculates its values from completed sales on eBay and its own marketplace — independent of any data on this page. The Sealed column reflects PriceCharting’s “manual-only” / new tier — factory-sealed retail at average condition; specific graded-sealed prices vary sharply by numeric grade + seal letter (use the Sealed eBay browse link below for grade-specific comps).

• Loose cartridge: $16

• Complete in Box (CIB): $47

• Sealed: $118

Heritage Graded Sales

Heritage Auctions sold results below are real auction transactions for Thunder Force II on Sega Genesis. They complement the PriceCharting loose / CIB / sealed benchmarks above; they are not estimates and they are not blended into PriceCharting’s ungraded market prices.

Summary rows are title-level Heritage sale signals, sorted by format, recency, and realized-price signal. PSA production variants can price differently, so the sale records keep Heritage’s own variant notes visible instead of pretending every auction lot maps cleanly to a PSA variant row.

High-grade games can trade years apart, so older auction records stay visible; treat the latest-sale date as part of the comp, not just the dollar amount.

Sale records:

Listings

Each link below opens an eBay search filtered to that condition, scoped to Thunder Force II on Sega Genesis. “Sold” pulls completed/sold listings (use this for price research). “Listings” pulls current active listings (use this to find a copy to buy).

• Loose Cartridge: Sold · Listings

• Complete in Box (CIB): Sold · Listings

• Factory Sealed: Sold · Listings

Why Thunder Force II Matters for Grading

With 10 PSA-graded copies on record, Thunder Force II sits in the mid-rarity tier for Sega Genesis — graded copies surface periodically on eBay but command meaningful premiums over raw. Sealed copies trade at roughly 7× the loose price ($118 vs $16). Solid spread for grading speculation if you can source a clean sealed cart.

Frequently Asked Questions

Is Thunder Force II Sega Genesis worth grading?

Mostly for sealed copies. The sealed-state population (6) outweighs CIB and loose for Thunder Force II, indicating sealed is where collector capital concentrates. CIB and loose grading is viable but margins are thinner after fees.

How rare is a graded sealed copy of Thunder Force II?

PSA tracks 6 graded sealed copies of Thunder Force II for Sega Genesis. The grade-tier breakdown above shows how those split across PSA’s numeric grades — top-grade copies (9.4+) are the scarcest and typically command the strongest premiums.

Should I buy a graded or raw copy of Thunder Force II?

Depends on your goal. Graded copies cost more upfront but come with PSA’s authenticity + condition guarantee — the right move for buy-and-hold collectors. Raw copies are cheaper but require condition assessment yourself, and the grading lottery means a $50 raw cart can come back as a $25 PSA 7 OR a $200 PSA 9.4. Use the per-condition pop and price data above to calculate expected value before you commit.

Why does PSA track multiple variants of Thunder Force II?

PSA’s database currently shows one tracked variant for Thunder Force II on Sega Genesis. That doesn’t mean only one variant exists — production codes that haven’t been submitted yet won’t appear on the census. Check the back of your cartridge for production-location markings (“Made in Japan”, “Made in Mexico”) and the box for ESRB-rating placement to identify your specific variant.

Sources

Pop counts pulled weekly from PSA Video Games population data. Prices from PriceCharting. PSA acquired WATA in July 2021 and completed the rebrand to PSA Video Games on October 20, 2025. PSA Video Games population data is the continuation of WATA’s population history. Heritage graded-sale comps come from Heritage Auctions sold archive lot pages linked in the sale-record table. Rankings, medians and summaries are What The Slab analysis — How we get our numbers.

Related Resources

• Sega Genesis Game Library — every variant PSA tracks for this console, with pop + price per condition tier (loose, CIB, sealed).

• Retro Video Game Collecting — pillar with broader strategy, market dynamics, and grading economics.

More Sega Genesis pop reports & prices:

• Theme Park

• Thomas the Tank Engine & Friends

• Thunder Force III

• Thunder Fox

• Sonic the Hedgehog 2

• Sonic the Hedgehog