Type together in electric dreams during game play to enable cheat
mode. The following actions may now be used during game play. 

* Avoid missiles by flying to the top of the screen. 
* Avoid rocks on level 8 and level 17 by slowing down.
* Avoid infra-red missiles by going to full speed. 
* Additionally, press the following keys to activate the 
  corresponding cheat effect.

Effect          Key 
-------------------
Previous level  <  
Level skip      > 
More missiles   G 
Less missiles   T 
Extra lives     N