To move the moon in eclipse, the arrows are used. To reveal Quetzalcoatl, use q, and once it is revealed, use WASD to move it. To reveal Kukulcan, use M, and to move him, use IJKL. Press space for Surprise_1. DO NOT PRESS C! Press O for Surprise_2.
I found the images of Kukulkan, Quetzalcoatl and Chichen Itzà on Google, the rest I did. If you want to use the images, credit to Google, if you want to use the rest, credit to me. Version 0.1: The essentials. Version 0.2: DO NOT PRESS C! Version 0.2: Now in english!