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Dr. Kawashima

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Dr. Kawashima
Official artwork of Dr. Kawashima from "Brain Age: Concentration Training".
Official artwork of Dr. Kawashima from Brain Age: Concentration Training.
Universe Brain Age
Debut Brain Age: Train Your Brain in Minutes a Day! (2005)
Smash Bros. appearances SSB4
Most recent non-Smash appearance Dr Kawashima's Brain Training for Nintendo Switch (2019)
Console/platform of origin Nintendo DS
Species Human
Gender Male
Article on Wikipedia Ryuta Kawashima

Dr. Kawashima (川島教授, Professor Kawashima) is the host of the Brain Age series. He appears in Super Smash Bros. 4 as an Assist Trophy.


Dr. Kawashima explaining the math exercise in Brain Age: Train Your Brain in Minutes a Day!

Ryuta Kawashima (川島 隆太, Kawashima Ryuta) is a real-world neuroscientist from Chiba City, Japan, who is known for his studies on the mapping of the various regions of the human brain and the effects of age on one's ability to learn. His most well-known work is a book entitled Train Your Brain: 60 Days to a Better Brain, which claimed that continued activities that stimulate the brain, such as basic mathematics and reading aloud, could be used to stave off the mental effects of aging. The book became a success, particularly in Japan, and his work was later adapted as a video game series by Nintendo, entitled Brain Age. In the games, Dr. Kawashima appears as a polygonal head, acting as a trainer for the player.

In Super Smash Bros. Brawl[edit]

Dr. Kawashima is mentioned by name in the PAL version of Brawl in the title of the music track "Dr Kawashima's Brain Training: How Old Is Your Brain?", referred to as "Brain Age: Train Your Brain in Minutes a Day" in the NTSC version. This is to maintain consistency with the PAL region title of the Brain Age series, in which Dr. Kawashima is named.

In Super Smash Bros. 4[edit]

As an Assist Trophy[edit]

Dr. Kawashima's initial reveal picture.

Dr. Kawashima appears in both versions as an Assist Trophy. When released, he floats into the background. Once he is settled, large numbers from 1 to 9 will fly vertically and horizontally across the screen at random. The numbers do not hurt fighters but can deflected 90 degrees by their attacks. If two numbers collide, they will be added together; if the result is 10 or more, the new number will then explode after a short delay, with a significantly larger explosion similar to the Smart Bomb if the result is 10 exactly. Uncommonly, all the numbers produced will be numbers that add up to 10, like 6 and 4 or 3 and 7, guaranteeing sums of 10.


In the Wii U version, Dr. Kawashima's trophy is a Challenge reward, unlocked by clearing Classic Mode without losing any lives.

Trophy in for Wii U.
Trophy in for 3DS.
Dr. Kawashima
Dr. Ryuta Kawashima is the neuroscientist behind the Brain Age series. In this game, he sends numbers from 1 to 9 flying onto the screen to crash into one another. If two colliding numbers add up to 10 or more, they'll explode. If the two numbers total 10 exactly, the explosion will be even more impressive!
Nintendo DS: Brain Age: Train Your Brain in Minutes a Day! (04/2006)
Nintendo DS: Brain Age 2: More Brain Training in Minutes a Day! (08/2007)

In Super Smash Bros. Ultimate[edit]

As an Assist Trophy[edit]

Dr. Kawashima reprises his Assist Trophy role from previous games. He seems to function the same as in Smash 4. One notable change is that his appearance changes the background of the stage to a white graphed background. He cannot appear in Boxing Ring, Coliseum, Frigate Orpheon, Green Greens, Hollow Bastion, King of Fighters Stadium, Kongo Falls, Midgar, Moray Towers, New Pork City, Princess Peach's Castle, Prism Tower, Tortimer Island, Town and City, and WarioWare, Inc.


No. Image Name Type Class Slots Base Power Max Power Base Attack Max Attack Base Defense Max Defense Ability Series
from the game's files
Dr. Kawashima
★★ 2 1784 7163 874 3510 910 3653 Can Be Enhanced at Lv. 99 Brain Age: Train Your Brain in Minutes a Day! Series North America
Dr. Kawashima's Brain Training: How Old Is Your Brain? Series PAL
from the game's files
Dr. Kawashima (Concentration Training) North America
Dr. Kawashima (Devilish Brain Training) PAL
★★★★ 2 4633 11582 2050 5125 2050 5125 Unflinching Charged Smashes Brain Age: Train Your Brain in Minutes a Day! Series North America
Dr. Kawashima's Brain Training: How Old Is Your Brain? Series PAL


Names in other languages[edit]

Language Name
Japan Japanese 川島教授, Professor Kawashima
UK English Dr. Kawashima
France French (PAL) Dr. Kawashima
Quebec French (NTSC) Professeur Kawashima
Germany German Dr. Kawashima
Spain Spanish Dr. Kawashima
Italy Italian Dr. Kawashima
China Chinese (Simplified) 川岛博士, Dr. Kawashima
Taiwan Chinese (Traditional) 川島博士, Dr. Kawashima
South Korea Korean 카와시마 박사, Doctor Kawashima
Netherlands Dutch Dr. Kawashima
Russia Russian Дoктop Кавасима


  • In the Dr. Kawashima Spirit Battle, after a few seconds of his Assist Trophy effects, the background produced by the Assist Trophy will disappear, as though the effect was ending, however the numbers will continue flying indefinitely.