This article applies Marble Blast Mods Creator Ver: 0.2.2 (0.2.1 Patch 1)

1.Step: Open Marble Blast Mods Creator.

2.Step: Click on Tools>Remove temp files menu item.

3.Step: Use the buttons to delete single or all files(when you deleting single file, file you selected will not be removed from listbox(bug 245, edited to the next version).