Holofile
Rocket's Secret Experiment Challenge from the Darkness

JAPANESE · CHALLENGE FROM THE DARKNESS

Rocket's Secret Experiment

Rocket's Secret Experiment (ロケット団の実験) is a card in Challenge from the Darkness, a Japanese Gym set, released on June 25, 1999. It’s an Uncommon illustrated by Ken Sugimori. A Near Mint copy has a market price of $4.07 as of October 17, 2026, down 3% over 30 days.

Market price · Near Mint

$4.07−3% in 30 days

Sep 17, 2026 · $4.19Low $4.07 · High $4.19Oct 17, 2026 · $4.07

As of October 17, 2026. Prices are estimates from third-party market data and are not offers to buy or sell. Holo10 in the Holofile app adds 6-month, 1-year and all-time charts.

Rarity
Uncommon
Released
June 25, 1999
Japanese name
ロケット団の実験

Prices

Normal

Ungraded
ConditionMarket30 days
Near Mint$4.07−3%
Lightly Played$1.97+2%
Moderately Played$1.030%
Heavily Played$1.00+18%
Damaged$0.64−4%
Graded
GradeMarket30 days
PSA 10$122.57−3%
PSA 9$20.660%
PSA 8$15.780%
PSA 6$13.000%
CGC 10 Pristine$93.97+1%
CGC 10$13.86+21%
CGC 8$13.000%
CGC 7.5$5.000%

Market prices as of October 17, 2026: in US dollars unless marked. Prices are estimates from third-party market data and are not offers to buy or sell.