Commands: Move around with arrow keys (can't use the mouse, sorry) Split blob with h. Join blobs with j. Turn gravity on / off with g. Change their sizes with e and r. Pause with p.
I compiled it in linux, and tested it with an emulator, so I don't know if it'll work fine in windows.
I recompiled it, now you can use F5 to reload the faces: http://www.4shared.com/file/0ReAJxJU/blobkkuri_2011-07-09.html I included danogoat's marisa. You can add other types of yukkuri if you make a new folder with the graphics and add the name to the file yukkuri.txt