Level 19 almost was hard. I thought it was gonna, but I just clicked the 4 top beams away and there is your exit. Should have thought more about the lvl designing. Nontheless a great addictive game!
And unless like ProffessorFlash I was having no problems at all at lvl 2.
Could have used simple instructions on level 1 but alright it didn't take long to figure it out. Connect ying and yang, gotcha.
Level 2 should be a no-brainer, but the platform always drops off screen on the last place. Tried it 3 times but always the platform drops through the cracks at the last one. I can only wonder how good the other levels are...