Vintage

Rocket's Secret Experiment

Gym Challenge · #120 · English · released 2000

Raw market price

$4.12

7 days

▲ 2.5%

30 days

▼ 0.2%

90 days

▼ 7.9%

Last 30 recorded prices▼ 0.2%

low $3.93high $4.10

47MASTER score · steady

Graded prices & PSA population

Grade	Market price	PSA population
PSA 9	$20.00	8
PSA 8	$8.00	5

PSA population recorded 2026-10-21 · total graded 20

Graded comps on record

$20.00

PSA 9

$12.00

CGC 10

$8.00

PSA 8

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$4.05

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$4.03

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$4.02

Market data recorded 2026-10-09 from licensed market sources. MASTER records prices daily and never invents a number — estimated values are always labeled. Not financial advice.