Cave Story seems to be getting bigger and bigger the closer it gets to a WiiWare release. Take, for example, these new t-shirts, due to go on sale later this year on Attractmode's online store.
The four shirts are pretty hit and miss, but man, that Balrog shirt is a hit. Apparently these are still waiting on final approval from Cave Story creator Pixel, but it'd be a coldhearted man to turn down a shirt giving us a look inside one of the greatest square robots of all time.