I'm lovin unity this is really fun but i got dissy running in circles maybe a compass or something to guide (but dont make it TOO helpful it will pretty much ruin the game)
to unlock advance units u have to upgrade the skill of that advance unit. the upper right of the skill screen shows that u have to learn them so the guild will allow access to their advance units
i hate the dam slipperyness always makes me fall of ledges and is there supppossed to be a dalay after every jump?? it takes a while for me to be able to jump again espically when im in the top of the screen
a game is something people do or play for fun, difficulty doesnt really matter unless u only get a kick of playing super hard games try play "Acid Rain" or "Unfair Platformer"