If you've ever wanted to team Ryu up with Casshan and fight against Mega Man Volnutt and Ken the Eagle, your time is running out! Capcom has announced that their rights to Tatsunoko have lapsed, so they can no longer sell the game in-store or online. Amazon has already removed their official listing for the game, leaving only other people selling the title through them. Some of those retailers have already started jacking up the price, as shown in the screen grab below:
I have found a handful of local GameStop stores that have one or two used copies in stock still, but I would expect those to be gone or see a price hike in the very near future.
I went out and purchased myself a copy of the game this afternoon. I had the game before, and had been wanting to purchase it again, and this was the perfect incentive.