Win a game on Difficulty 3 (easy) or harder

Find a piece of the phone in one of the caves.

Use the 'Phone Detect' ability and have it successfully locate a piece.

Collect all 3 pieces of the phone.

Use the 'Phone Home' ability while carrying all 3 pieces of the phone.

Make it to the landing pad before the rescue ship timer expires.

Win the game

Win the game without dying.

Win a game while ET still has at least 5000 health.

Use the 'Eat Candy' ability to regain some health.

Use the 'Scream' ability to call Elliot.

Call Elliot and give him some of your candy.

While carrying 9 pieces of candy exchange them with Elliot for a piece of the phone.

Use the 'Go Back to City' ability to scare away any bad guys.

Use the 'Teleport' ability to skip to the next screen.

Revive the withering flower to gain an extra life.

Win without the FBI ever stealing any part of your phone.

Give Elliot exactly 7 pieces of candy, collect all 3 pieces of the phone, then revive the flower

Win the game after falling in a well 50 times or more

Collect 5 pieces of candy without falling in a well

Win the game without being brought to the lab by the scientist

Repeat the easter egg trick a third time to see the developer's tag in the score

After seeing the Yars Revenge easter egg, beat the level and repeat the steps