From HintWiki

General Tips

• The section "The Worlds" in the manual contains background information about Stark and Arcadia. You may wish to read it at some point to gain a better understanding of the worlds.
• Take the time to customize the options. A lot of people find that the default settings are suboptimal. In particular, you may find that setting "Camera horizontal axis" and "Camera vertical axis" to "Inverted" makes the camera move more intuitively.