ondermega Collection is a sample disc bundled with Japanese Wondermega consoles. It contains four CD+G karaoke songs and Battle Fighter, Flicky, Pyramid Magic and Quiz Scramble as playable games.
Unknown1992
SEGA CD · 1991–1996
Wondermega Collection
Sega CD · 1992 · NTSC-U
Floor
—
no live data
Live
0
sealed listings
Range
—
no range on file
Recent
—
no verified comp
Ask the Companion
Argo is thinking…
Activity feed · live
Activity feed builds as the eBay snapshot history accumulates and comp data flows in. First events surface within hours of a fresh cache cycle; full velocity within seven days.
Pulse · Sealed
Floor—
Volume—
Sellers—
7-day trendBuildingHistory accumulates after each fresh eBay refresh
Available now
Live listings
Active tier · Sealed. Aggregated from eBay US. Refreshes every 6 hours.
Market depth
What it's actually worth
The three-tier spread, verified comparable sales, and where this title sits inside its cohort. Live snapshot lives above in Pulse; this is the time-and-context layer.
Three-tier spread · log scale
The same game at three prices — Loose, CIB, and Sealed on one ruler. The scale is logarithmic: each gridline step is 10×, so the distance between bars shows the size of the jump between tiers.
Premium structure
Sealed vs CIB—
CIB vs Loose—
Sealed vs Loose—
Verified comparable sales · by tier
Sealed · 0 sales
No verified comparable sales in window. Real comp data integration (Heritage / Goldin / eBay Insights) ships V15.22+.
Complete in Box · 0 sales
No verified comparable sales in window. Real comp data integration (Heritage / Goldin / eBay Insights) ships V15.22+.
Loose · 0 sales
No verified comparable sales in window. Real comp data integration (Heritage / Goldin / eBay Insights) ships V15.22+.
Cohort context · sealed floor vs. cohort medians
vs. console cohort
Same console, same tier
-100%below cohort median
Cohort median €78 · 121 titles
vs. era cohort
Same console, year ±2
-100%below cohort median
Cohort median €69 · 88 titles
vs. publisher cohort
Same console + publisher
Insufficient cohort data.
Cohort widens as the catalog enriches.
Sealed · price history
Price history is building — daily snapshots accumulate here.
Argo is thinking…
Why this title
Why collectors care
The cultural context, the production lineage, the place this artifact holds in its console's history.
Released alongside · 1991–1993
Hardware specimen
- First print documented
- No
- Regional / language names
- ワンダーメガ コレクション
Authentication
Is what you're holding real
Documented variants, identifying marks, and the print-vs-reprint discriminator. Pick a variant to focus the walkthrough; the Companion can talk you through your own copy.
Documented variants · 1
Reference
Production reference
No production variants are documented for this title yet. The identifying marks below cover the title's first-print and reprint signals across all tiers.
Focused walkthrough
Production reference
No production variants documented for this title yet. Identification reads against the title's known print signals across all tiers.
Sealed indicators
No documented marks for this tier yet.
Complete in Box indicators
No documented marks for this tier yet.
Loose indicators
No documented marks for this tier yet.
Spotted a variant we missed, a print signal we overlooked, or an authentication trap collectors should know about? Contributing a photo or correction earns points toward store credit.
How contributions work→Argo is thinking…
Adjacent
Where else this lives
Five cuts of what surrounds this title — switch the axis to drill into the same-console catalog, the series, the era, the publisher, or ask the Companion for a personal recommendation.
HANGTABD · TITLE PAGE · SEGA CD