Each cartridge costs $100 is available in one of two colours, opaque light blue (Mega Man 2), opaque white (Mega Man X) or translucent glow-in-the-dark blue (both -- although which you'll get is a surprise). They're not just collector's items either, as both are fully playable. Pre-order on iam8bit.com now for shipping in September, but be quick, each game is restricted to a run of just 8,500 units.

Update: This story has been updated to show that Mega Man X is also available in opaque white.