2 Dollars - Elizabeth II Space Invaders

Niue has long operated as a licensing vehicle for novelty bullion, issuing silver coins under New Zealand's monetary umbrella while bearing no meaningful connection to domestic circulation. This piece is part of a broader wave of Japanese retro-gaming tributes that flooded the collector market in the late 2010s, timed to capitalize on the 40th anniversary of Taito's 1978 arcade release.

Space Invaders was itself a phenomenon that caused a nationwide coin shortage in Japan upon release — the 100-yen piece became scarce enough that the mint had to triple production.