Echo Generation

The corpse is in the spaceship located in the Cornfields. Walk to the left and interact with the corpse in the chair to get the achievement.

You can also get the achievement for talking to the Alien Squid in the ship.

Story related.

Full walkthrough:


Timestamps:

00:00 Intro + Achievement WARNING
00:40 Story Maple Town: It’s Me, Siblings Unite!, Triple Trouble Achievements
05:35 Story Maple Road: Android Clown and Treehouse VIP, Achievements
09:29 Story Cornfields: Feline Fabulous, Creepy Stuff, Bliiirrr! Achievements
11:30 Story JunkYard: Heavy Metal, Sunday Funday Achievements
13:55 Story Downtown: Good Karma, Bubble Tea VIP Achievements
16:20 She-Volt Achievement
16:42 Story Downtown: Ice Cream Forever, School’s Out, Prank Call, Prom Queen Achievements
19:38 Story Maple Town: Beep-Boop Blop!, Get Educated Achievements
21:56 Story Graveyard Woof!, All Bones Achievements
27:30 Hockey Heroes Achievement
28:13 Story Woods: I Believe, Don’t Judge, Intergalactic Achievements
32:18 Story Train Tracks
33:36 Purrfect Achievement
34:06 Story Train Tracks: Sunny Side Up, Tremors in the Ground Achievements
36:48 Wacky Woodchopper Achievement
37:10 Story Train Tracks & Graveyard
39:33 Boba Bombastic Achievement
40:50 Story FST Facility: Ka-Boom! Achievement
46:14 Mixtape Achievement
47:00 Story FST Facility: Intruder Alert!, Security Breach! Achievements
49:48 Blopo-11 Achievement
50:23 Story FST Facility: Magical Myth Achievement
51:43 Floral Fantasy Achievement
52:19 Doghouse & Dragons, Trash Panda, Master Decorator, Shadow Star Achievements
55:17 Astralope and Toy Master Achievements
56:20 Story Fight: Here They Come Achievement
56:45 Do this before entering the Portal
57:19 Ending: Into Another Dimension, Echo Generation, Blastomaniac, Fatal Edge, Ultimate Defeat, and Road Trip Achievements

30:55 Meet the Corpse

Achievement Walkthrough: