This is a full 100% walkthrough of the challenge mode in Pikmin 2 for Nintendo Switch. This video showcases all 30 challenge arenas. Every treasure is collected with no Pikmin deaths, resulting in a perfect score.

To earn a perfect score, you must complete all sublevels with no Pikmin deaths. You do not have to collect any of the treasures, you only need the keys. Earning a perfect score in all 30 stages will unlock Louie’s Dark Secret, which can be accessed in the bonuses on the main menu.

0:34 Explorer's Cave
5:30 Novice Training
14:13 Lost Toy Box
20:14 Creator's Garden
25:01 Green Hole

30:36 Hot House
35:57 Brawny Abyss
42:10 Red Chasm
46:00 Trampled Garden
51:50 Twilight Garden

56:26 Cryptic Cavern
1:04:51 Concrete Maze
1:12:58 Collector's Room
1:23:22 Dweevil Nest
1:28:48 Cavernous Abyss

1:34:16 Snack Pit
1:38:46 ThreeColor Training
1:44:57 Hazard Training
1:59:06 Cave of Snarls
2:06:05 The Giant's Bath

2:14:19 Rumbling Grotto
2:22:53 Subterranean Lair
2:26:08 Hidden Garden
2:33:17 Abduction Den
2:38:31 Secret Testing Range

2:46:12 Breeding Ground
3:01:16 Cave of Pain
3:06:46 Bully Den
3:15:50 Sniper Room
3:24:21 Emperor's Realm

3:38:57 Louie's Dark Secret