If you are missing an achievement zoom out and look around the center of the board, where you fight your alternate self. There should be a new branch which makes a loop.
Sweet about time this game got badges. If you already have a save file where you have done everything then just complete a random level to get the badges
for level 30 hit the purple swith on the right and then quickly move the left piece and hit the aqua coloured key and then move the piece to the left so it doesnt get trapped.
back to the right you should still be on the purple switch as the blue block passes through you and stops the purple from curshing you. move down and then hit the red switch on the left side. once its clear enter the hole in the wall on the right to hit the final switch.
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