you may have played this a long time ago, but this version is new, harder, beatable, with many improvements.
more efficiency--you no longer have to beat every level to win, or beat the easy levels first. if you beat the hard levels, you skip the easy ones.
more variety--you also no longer play the same level over and over again. you get 1 shot at each level in a group, then you start over if you didn't win the group.
more difficulty--5 hydras vs 3 zealots? now it's 4 hydras. time limits are now a bitch, too.
pls check it out if you're good at this kind of thing, i would like to re-order the levels based on difficulty (each group should be ordered from hardest to easiest), but i need more feedback to do this. i'm also looking to tweak the time limits, or difficulty if i see a compelling enough situation.