ok i got a robot hero cliffjumper at a flea market today, but someone wrote a g on his leg with sharpie and it is covered in dirt, i would use water but it is made out of soft rubbery material, would that damage the figure if i used cold water and soap?

edit: got the dirt off with cold water and soap of course, the main problem is that stupid sharpie G on his leg, what would remove that without damaging the figure

 

toothbrush,warm water,dish soap.that should do the trick.and if something does happen with the paint,you can repaint any spots that get damaged though that shouldn't happen