Amazon's notorious French site has the unannounced game up for pre-order at €69.99. No release date is given and it doesn't feature official box art.
A Kid Icarus port would seem unlikely following the closure of development studio Project Sora, although it would appear a good fit thanks to the GamePad's touch controls and dual analogue sticks.
The same retailer previously outed the Ratchet & Clank: HD Collection and famously leaked Black Ops 2 in February.
It also outed Killzone Trilogy for the PS3, a title which has subsequently been confirmed by Sony.
Available now for the 3DS, Kid Icarus: Uprising sees the return of the Medusa, Queen Of The Underworld. It also features tank-based combat and a customisable difficulty setting called Fiend's Cauldron.
Fiend's Cauldron allows players to adjust the level intensity in 0.1 increments for each chapter. Difficulty levels start at 0.0 and go up to 9.0. Choosing a higher difficulty results in better weapon drops and more hearts, which are used to buy new items.
> Read Digital Spy's Kid Icarus: Uprising review
Watch a trailer for Kid Icarus: Uprising on the 3DS below: