| Filter 2 |
| You can rotate the lasers either left or right. |
| Use red to block green |
| Use blue to block red |
| use green to block blue |
| Get the green coin first |
| You'll need two filters to get green in place |
| set up a red and a blue filter to rotate green in place |
| Place the red filter directly below the green coin |
| Place the blue filter directly down and left of the green beam |
| Rotate the green beam left to hit the coin |
| Place the blue filter to the right and down from the red coin |
| Rotate the red beam in the proper direction to hit the red coin without blowing up |
| Do the same for the blue beam using the green filter to block it |
| Filter 4 |
| You need to filter out the unwanted colors leaving only the desired color behind |
| The light on the bottom right tell you which colors each piece has. use them to help you. |
| Remember white = red+green+blue |
| Two filters can be used for each coin |
| For the red coin : Purple contains red so place a purple filter in that path |
| For the red coin : Yellow also contains red so place a yellow filter in that path |
| For the red coin : Purple takes out the green component and yellow takes out the blue component leaving you only with red |
| Do the same for the other coins. |
| Split then merge |
| The name is a hint |
| use two splitters on the left hand side of the wall first |
| The first splitter should give you a blue beam |
| The second splitter sends the white beam up and down |
| Reflect the top beam to get a green beam |
| Reflect the bottom beam to get a red beam and hit the coin with red |
| Put the prism directly one square to the left of the coin |
| refract green into the prism |
| reflect blue into the prism |
| You should have white now |