An idea

[Neko244]

Couldn't you have skill points in levels? For example, in level 4-3, to kill 2 mummies by snapping the ropes for the platforms and in 4-4, to get through the 3 doors without putting boxes on the buttons. They could probably unlock stuff. Good? http://www.pontifex2.com/iB_html/non-cgi/emoticons/smile.gif" border="0" valign="absmiddle" alt=':)'>

[Jonathan_NL]

There are too many ways to do things for "skill" points to be fun.