Brain Age (universe)
The Brain Age universe (脳を鍛える, Brain Training) is a series of educational puzzle games for the Nintendo DS, 3DS, and Switch, first released as Brain Age: Train Your Brain in Minutes a Day! in 2005. It stars real-world neuroscientist Dr. Kawashima who teaches different exercises for training and maintaining one's brain (or improving one's "Brain Age", as the series is named for).
The following characters from the series are spirits.
Games with elements from or in the Super Smash Bros. series.
Brain Age: Train Your Brain in Minutes a Day!
Brain Age 2: More Training in Minutes a Day!
Brain Age: Concentration Training (NA)/Dr Kawashima's Devilish Brain Training: Can you stay focused? (PAL)