In cenotes we make a distinction between cave and cavern. Limits of a Cenote Cavern Dive : you are at a maximum distance of 67meters / 140feet from any exit (open water) you can always see the light from entrances. there are no restriction area : there is alway room for 2 people side by side.
1 In the non-canon music video for Derezzed, there is an arcade machine called Derezzed in place of the TRON arcade machine. 2  The Derezzed machine is labelled as being made by ENCOM, just as the TRON machine is labelled as such in TRON: Legacy.
Nibbler (1982) is a single-player arcade game where the snake fits tightly into a maze, and the gameplay is faster than most snake designs. Another single-player version is part of the 1982 Tron arcade game, themed with light cycles. It created new interest in the snake concept, and many subsequent games borrowed the light cycle theme. Starting in 1991, Nibbles was included with MS-DOS for a period of time as a QBasic sample program.