There are two introduction sequences available, depending whether you hit the RED or GREEN button.
Sometimes you need to warp back to a junction because you took the wrong branch or because of an endless loop you are flying in. Just move to the map and place the outlined rectangle to the red mark you want to warp to (place it with the YELLOW or BLUE button). To actually warp press the GREEN button while you are on the map.
Press PAUSE after the game started and try the 4 colored buttons. If you hear a higher tone you hit the first button in one of the following combinations, now press the remaining buttons.
GREEN, BLUE, YELLOW, RED, YELLOW, DOWN, GREEN, RIGHT, RED, UP
or
RED, GREEN, BLUE, YELLOW, DOWN, DOWN, BLUE, DOWN, RIGHT, BLUE
or
YELLOW, RED, GREEN, BLUE, UP, LEFT
or
BLUE, YELLOW, RED, GREEN, BLUE, LEFT
You will hear some sound and from now on your life never ends and you have access to the right brain with all weapons available, but all rendered sequences will appear grey shaded only.
If you hold down the two black buttons on the top of the joypad while pressing one of the above sequences the rendered sequences will still be in color.
It seems that Psygnosis has put some music on the CD not used in MICROCOSM. Just try track 2 from the game CD on your audio CD player.
When you are walking into the pod base, try pressing the LEFT button and keep it pressed until you arrive at the crossway.. now all the level maps are upside-down..