TheGemMintTheGemMint
Sign inJoin now
  • Today's deals
  • Newest drop
  • All cards
  • Sealed
  • Graded
  • Sets
  • Sell your cards
Invite friendsGot a code? £5 off

Got a friend's code?

£5 off a card of £25 or more

Enter code
/
/
TheGemMintTheGemMint

Where collectors come to trade

The UK's modern marketplace for Pokémon collectors with low seller fees.

Marketplace

  • Today's dealsNEW
  • Newest dropNEW
  • Browse
  • Sealed
  • Graded
  • Sets
  • Sell
  • Trending

Rewards

  • Invite friendsNEW
  • Got a code? £5 offNEW
  • Gem Points
  • Founders

Help

  • Help centre
  • Contact

Legal

  • Terms
  • Privacy
  • Referral Programme Terms
  • Trader Terms
  • Community Rules

TheGemMint is an independent marketplace and is not affiliated with, endorsed by, or sponsored by Nintendo, The Pokémon Company, or Creatures Inc. All product names, logos, and brands are property of their respective owners.

Card images shown for illustrative purposes only. All Pokémon card artwork is copyright The Pokémon Company International, Nintendo, Creatures Inc., and GAME FREAK. TheGemMint displays this imagery solely to facilitate the resale of genuine cards by their lawful owners under the principle of exhaustion of rights.

© 2026 TheGemMint Ltd · Company no. 17200360 · 18+ only
Catalogue›Gym Challenge›Rocket's Secret Experiment
Rocket's Secret Experiment
Gym Challenge · 120/132UncommonEnglish

Rocket's Secret Experiment

Card #120/132·Illustrator Ken Sugimori

UK sold, condition not stated by seller
£5.75
Based on 3 recent UK sales · eBay UK · sellers did not state condition

Other markets · reference only

EU · Cardmarket
No EU price held yet

What this sells for in Europe, converted to pounds at the day’s rate. Compared with the UK price of £5.75 (condition not stated). For reference: not a UK price, and never used as ours.

Live listings
0
on TheGemMint right now
See 0 listingsList this card
No listings yet

Nobody is selling this card yet.

List yours

UK sold prices

eBay UK

5 UK sales across all conditions · last 90 days · most recent 58 days ago

  • Raw7 Sept
    Pokémon TCG Rocket's Secret Experiment Trainer Card 120/132 Gym Challen…
    £4.91
  • Raw29 Aug
    WotC Pokémon TCG Rocket's Secret Experiment 120/132 Uncommon Unlimited
    £10.51
  • Raw10 Aug
    Pokémon TCG Rocket's Secret Experiment 120/132 Uncommon Gym Challenge 2…
    £5.75
  • Lightly Played5 Jul
    Pokémon TCG Rocket's Secret Experiment Trainer Card Gym Challenge Wotc …
    £5
  • Lightly Played2 Jul
    Pokemon Cards Rocket's Secret Experiment 120/132 Unlimited Gym Challeng…
    £9.99

Completed sales from UK-located eBay sellers, in pounds, newest first. Raw and graded sales are listed together, so this total is wider than the per-condition price above, which is the middle of each condition’s most recent 10. Market reference, not sales on TheGemMint.

Sold price data from SoldComps.

Price history

We’re building price history from confirmed UK sold listings: real sales, in pounds, in this market. It appears on a card once there are enough of them.

Grading

Condition guide: what to look for

A reference when pricing or evaluating your own copy.

PSA 10Top tier
Gem Mint

Perfect 4-corner centring (typically 55/45), no whitening, no surface scratches under angled light. Pop & cert verifies on PSA's lookup.

PSA 9Strong
Mint

One minor flaw: slight centring drift or one minuscule corner mark visible under loupe. Surface still clean. Strong eye-appeal.

PSA 8Mid tier
Near Mint–Mint

Slight wear on one or two corners, minor surface marks, or noticeable centring (~65/35). Holo still pops.

Raw NMBaseline
Near Mint (ungraded)

Pulled and stored well, sleeved straight from the booster. Strong PSA 9–10 candidate but ungraded, so the buyer takes the grading risk.

From the same set

More from Gym Challenge

Full set
Victory Medal (2006)
Victory Medal (2006)
No UK sales yet
Basic Fighting Energy (2003)
Basic Fighting Energy (2003)
No UK sales yet
Basic Metal Energy (2006)
Basic Metal Energy (2006)
No UK sales yet
Basic Fire Energy (2006)
Basic Fire Energy (2006)
No UK sales yet
Basic Fire Energy (2003)
Basic Fire Energy (2003)
No UK sales yet
Fire EnergyCommon
Fire Energy
128/132
No UK sales yet

UK sold prices

What this card actually sells for, from confirmed eBay UK sold listings.

eBay UK
UK sold, condition not stated by sellerFair confidence · C
Market price: middle of all 3 UK sales
£5.75average £7.06

Based on 3 recent UK sales

Last 3 sales: median £5.75, average £7.06
  1. 7 Sept£4.91
  2. 29 Aug£10.51
  3. 10 Aug£5.75
3 UK sales·typically £5.33–£8.13·£4.91–£10.51 overall·last sold ~8 weeks ago·View sold listings ↗
Raw · Lightly PlayedFewer than 3 sales

2 UK sales in the 90 days to 26 Sep 2026

  1. £5Raw, Lightly Played·sold 5 Jul
  2. £9.99Raw, Lightly Played·sold 2 Jul

Not a market price: with fewer than 3 UK sales each one is shown as it happened. Confirmed eBay UK sold listings.

The market price is the middle of the most recent 10 UK sold listings within the last 90 days, after unusually high or low sales are set aside. A Best Offer sale is shown at its asking price and left out of the price when 5 or more other sales remain. A condition or grade with fewer than 3 UK sales shows each sale instead of a price. Market reference, not sales on TheGemMint. Last checked 26 Sept 2026 (may be out of date).