Collector interest
Wai Wai World 2 SOS Parsley Jou is a Famicom exclusive that never left the East, the second crossover in which Konami gathers Gradius, Castlevania, Contra and friends. That in-house festival quality, plus total absence in NTSC and PAL, fuels demand among collectors of Konami rarities and titles that stayed Japanese. The language barrier sharpens its cachet as an import sought by connoisseurs of the publisher's franchises.