Conker's Bad Fur Day (N64)

Conker's Bad Fur Day (2001) on the Nintendo 64 is one of the rarest and most sought-after PAL games ever produced. Rare's adult-oriented platformer — packed with movie parodies, crude humour, and surprisingly tight gameplay — was released at the very end of the N64's life when most gamers had already moved on. The PAL version had an extremely limited print run, and complete-in-box copies now command several hundred euros. Even loose cartridges are highly collectible.