Castle of Elite - Official game guide|
Introduction - Basics - Solutions - Secrets - Trivia
When the guide tells you to place a brick symbol on a certain square, it means you should aim the mouse cursor on that square.
2-9: Needlessly complicated
A: Hit the blue switch, and fall down to the green teleproter.
B: Hit the green switch, and the Trundler will be able to reach the yellow switch. Go right and get the coin.