Terrific demo is a demo by Mage of Bugs.
This demo contains no great code, just a funny game: if you think about a number between 0 an 63, the demo asks you 6 questions and print the number you were thinking about.
As in most demos by Mage, this demos includes pseudo cheat codes : esc, control or del were used by Mage to test different effects that were not automatically included in final demos.
Release date: 1994