Hold down Shift and click on the green flag for Turbo Mode. Change 'foldings'! The process is: fold a paper fold the folded paper fold the folded paper .... unfold the paper and make all angles 90 degrees
There's a nice Numberphile video about dragon curves: http://www.youtube.com/watch?v=wCyC-K_PnRY How to fold a dragon curve using paper: http://www.cutoutfoldup.com/216-dragon-curve.php