Nintendo has removed AQ Interactive's Nintendo 3DS puzzler Cubic Ninja from Japan's eShop (the only region in which it saw a digital release) after details regarding an in-game exploit were revealed earlier this week.
The exploit, which requires a modified save file and a copy of Cubic Ninja, reportedly enables the use of homebrew games and applications on Nintendo's handheld. It does not currently enable piracy of commercial games -- a widespread issue that plagued the Nintendo DS throughout its lifespan.
After the exploit was announced, used copies of Cubic Ninjashot up in price oneBay, Amazon, and through other third-party sellers. The North American version of the game currently fetches prices in excess of $40 on Amazon, while several recent eBay auctions have ended at over $30. A similar phenomenon spikedLumines prices when a homebrew-enabling buffer overflow exploit was discovered for Sony's PSP in 2007.