For a limited time only from March 12th ~ May 14th, the Japanese can get their hands on a "Ryuusei no Rockman" E-Sense Postcard for 50 Yen (US$0.42).

So what's so special about these postcards that they get tagged with a special "E-Sense" name? Well, they're sold in limited quantities and comes pre-stamped to prove it. No postage required too.

Source:
• Famitsu

Related Links:
• E-Sense Postcard Official Site
• Ryuusei no Rockman Official Site
• Ryuusei no Rockman, Potentially Dangerous Bonus Pendants Recall
• Ryuusei no Rockman, Be