| Set | Gym Challenge |
| Card number | 120 |
| Rarity | Uncommon |
| Type | Trainer |
| HP | 0 |
| Artist | Ken Sugimori |
| Released | Oct 2000 |
Rocket's Secret Experiment #120 Value (Gym Challenge)
Pokemon card price guide: raw and graded values, eBay sold prices and price history. Updated Nov 2, 2026.
Rocket's Secret Experiment is an uncommon Trainer from the Gym Challenge set released in 2000. Ken Sugimori's art captures the shadowy Team Rocket theme embedded in the card's function and design.
Current prices
| Source | Price |
|---|---|
| TCGplayer market price (USD) | $3.37 |
| Cardmarket lowest near mint (EUR) | €10.00 |
| Cardmarket 7-day average (EUR) | €8.62 |
| Cardmarket 30-day average (EUR) | €7.94 |
| Cardmarket listings available | 80 |
Buy / compare: TCGplayer · eBay · eBay sold · Cardmarket
Unsure about the set symbol or number? A Pokémon card scanner reads both from one photo.
What sets the price of Rocket's Secret Experiment #120
Rocket's Secret Experiment #120 is an Uncommon Trainer card from Gym Challenge, the Gym era (2000). It ranks as number 99 by price out of 264 cards in the set. Its price has held almost flat over the last 30 days ($3.37 to $3.37). The illustration is by Ken Sugimori.
Graded card values (PSA, CGC, BGS)
| Grading | Grade | Median sold | Sales |
|---|---|---|---|
| PSA | 9 | $44.00 | 4 |
Graded values are medians of real eBay sold listings.
Rocket's Secret Experiment price history
| Month | Avg Cardmarket low | Avg TCGplayer market |
|---|---|---|
| Nov 2026 | €10.00 | $3.37 |
| Oct 2026 | €6.37 | $3.37 |
| Sep 2026 | €5.50 | $3.46 |
| Aug 2026 | €5.50 | $3.57 |
| Jul 2026 | €5.50 | $3.61 |
| Mar 2026 | €6.00 | - |
| Dec 2025 | €5.50 | - |
| Nov 2024 | €3.90 | - |
Frequently asked questions
What is Rocket's Secret Experiment #120 worth on Nov 2, 2026?
As of Nov 2, 2026, a raw near mint copy is worth about $3.37, the Cardmarket low is €10.00. Prices update hourly from Cardmarket, TCGplayer and eBay sold listings.
Is Rocket's Secret Experiment #120 rare?
Rocket's Secret Experiment #120 is printed at Uncommon rarity and ranks number 99 by price among the 264 cards in Gym Challenge. Demand for the character and condition matter more than the rarity symbol.
Is Rocket's Secret Experiment #120 going up in value?
Not much right now. Its price has stayed within a few percent over the last 30 days, at about $3.37.
How do I check which printing of Rocket's Secret Experiment I have?
Look at the set symbol and the card number (120) at the bottom of the card, then match both to this page. A phone scanner such as Card Value Scanner on iPhone reads them from one photo; on Android, search the number in the price guide.
Most valuable cards in Gym Challenge
Gym Challenge card list · All Pokemon sets · Most valuable Pokemon cards
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