Pokémon sets › Japanese Promo › Mewtwo [Game-Boy]
![Japanese Promo Mewtwo [Game-Boy] Pokémon card](https://pub-4919690d36064f94806d666a71d998a0.r2.dev/Japanese%20Promo/mewtwo-game-boy-150.jpg)
Mewtwo [Game-Boy] #150
Low confidence 2nd most valuable of 24 priced cards in Japanese Promo — top 8%
Rough guide — limited market data — pre-2010 condition spread, thinner Japanese market data.
Priced against the UK market and refreshed weekly — adjusted where UK collectors reliably pay above the US average. We have not yet seen enough recent UK activity for this card to read it directly.
A PSA 10 of this card sells for about 5.5× the ungraded price — £783.74 raw against £4305.66 graded.
Peaked at £789.66 in August 2026; lowest £638.00 in June 2026. PSA 10 moved -9.4% over a comparable period.
UK price month by month
| Month | UK ungraded |
|---|---|
| June 2026 | £647.41 |
| July 2026 | £692.28 |
| August 2026 | £783.74 |
UK guide prices, with the US market alongside — updated 30 August 2026. Each market is priced from real market data in that market. Estimates for collection tracking — not an appraisal or a quote.
Check recent UK sold prices on eBay →
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![Pichu [Reverse Holo]](https://pub-4919690d36064f94806d666a71d998a0.r2.dev/Japanese%20Promo/pichu-reverse-holo-172.jpg)
