Win version: In the Loadrunner menu, click the upper left corner and
 type CTHULU (v1.2) or ZOG (v1.3). You should hear a sound.
 
 (T), (Z), (U) 
 (G), (H), (J) Direction-keys
 (B), (N), (M) /
 (TAB) Use-key
 
 DOS-version: press Ctrl + F3