Cave Story Wii "bmp" files

[yemDX9]

I've been trying to open the .bmp files in the internal data of Cave Story Wii, but it seems they're encrypted in some way.

http://www.sendspace.com/file/hehyrw

Here's a link to one of the bmp's, how could I open this? It's bugging me.

ps. hi jp :>