Play Big Brain Academy (Supremacy) (E) Online

Big Brain Academy for the Nintendo DS came out in 2006, published by Nintendo. It was part of that wave of touchscreen games that made the handheld feel like a new kind of toy, something you could poke and prod in ways a regular controller never allowed. It fit right in with the system's personality, a quirky little title you'd pull out for a few minutes between other things.

You don't control a character so much as you command your own focus, tapping and scribbling answers on the lower screen with the stylus. The main objective is to complete a series of rapid fire logic puzzles, each designed to test a different mental skill like memory, analysis, or math. One moment you're tracing a path through a maze as it disappears, the next you're counting how many weights are on a scale. The pace is relentless; the game throws problems at you and your score is a literal "brain weight" measured in grams, which the game critiques with playful, sometimes cheeky feedback. It feels like a brisk mental workout, a satisfying test of your own quick thinking under pressure.