The lines are meant to help the player know the beat... and yet not only is it not synchronized with the beat, but it moves independently of the colored tabs for the notes! And most of the notes are all not synchronized with the music.
Never mind about level 22, just change the guy into the grey one which controls electricity and leave the electricity off.
Anyways, this game was nice at first, but later levels are more dependent on luck and just mashing buttons rather than the puzzle element, so it's not as good as the first game.
Strange, it doesn't load for me, and I've beat it before. The updates must've done something. I've reloaded the page several times and it just stays stuck. I guess I can't get the Sweepstakes thing...
To get the Halo challenge, you have to beat level 1 again. Then if it doesn't offer you to go to the secret level, go to the main menu, and at the bottom there will be a link to the secret level.
35. You need to drop the triangle from the top of the screen and then place the grey rectangle on top of the blue square stack before the triangle lands.