This is a list of bosses found in the Psychonauts series. The boss enemy is generally far stronger than the opponents Raz has faced up to that point.
Psychonauts[]
- Mega Censor - Fought in Sasha's Shooting Gallery.
- Shadow Lungfish - Fought in the Brain Tumbler Experiment.
- Blueprint Brain Tank - Fought in the Brain Tumbler Experiment.
- Blueprint Brain Jar - Fought in the Brain Tumbler Experiment.
- The Hideous Hulking Lungfish of Lake Oblongata - Fought under Lake Oblongata.
- Kochamara - Fought in Lungfishopolis.
- Nightmare - Fought in the Milkman Conspiracy.
- Den Mother - Fought in the Milkman Conspiracy.
- Jasper Rolls - Fought in Gloria's Theater.
- Luchadores - Fought in Black Velvetopia.
- El Odio - Fought in Black Velvetopia.
- Dingo Inflagrante - Fought in Black Velvetopia.
- Psychoblaster Death Tank - Fought in the ruins of Thorney Towers Home for the Disturbed.
- The Butcher - Fought in the Meat Circus.
- Evil Augustus - Fought in the Meat Circus.
- Two-Headed Dad Monster - Final boss.
Psychonauts in the Rhombus of Ruin[]
- Monstroboto - Fought in Loboto's Mind.
Psychonauts 2[]
- Lady Luctopus - Fought in Hollis' Hot Streak.
- Judge - Fought in Compton's Cookoff.
- Gluttonous Goats - Fought in Compton’s Cookoff.
- Panic Attack - Fought in PSI King's Sensorium.
- Nightmare Maligula - Fought in PSI King’s Sensorium
- Die-Brarian - Fought in Cassie's Collection.
- Bad Mood - Fought in Bob's Bottles.
- Truheltia Memonstria - Fought in Bob’s Bottles.
- Maligula - Fought in the Deluge Of Grulovia
- Giant Maligula - Fought in the Deluge Of Grulovia
The Judge, Panic Attack and Bad Mood are all recurring enemies that are marked onscreen as bosses the first time they appear, but they are no stronger in these introductory encounters than later, generic ones.