Platform: Atari 2600 (Stella Emulator)
Rules: Phone Home and get to the ship as many times in 1 hour.
Time: 1 hour
First off, read the manual:
https://archive.org/details/E.T._The_Extra-Terrestrial_1982_Atari/page/n1/mode/2up
The game will be played on the "Game 1" option - all humans present in the game. The right difficulty switch should be set so that humans should move faster (A position difficulty). The left difficulty switch should be in A, so that Elliot cannot be present when the rescue ship arrives. (Because it should be as challenging as possible, right?)
Winning conditions are in order: Number of times E.T. is successfully rescued (which will almost definitely be both a matter of actual skill AND perseverance in being willing to stick with the game long enough to get more rescues). Tiebreaker 1 will be shortest time to first rescue. Tiebreaker 2 (which should likely be unneeded) will be number of actual hibernations (E.T. runs out of energy and gets no more rescues from Elliot).
TL;DR: Most completions in Game 1 > Fastest First Completion > Deaths
Update: Submissions will be Completions > Phone Pieces > Time > Deaths
For those who don't complete, please make note of the time you get your last phone piece as that will be the tiebreaker.