Brain Training
Cortex Blitz Academy
An original endless brain training challenge with responsive controls, escalating hazards, and hard progressive levels.
▶ Play fullscreenAbout this game
Solve timed arithmetic and increasingly complex expressions under continuous combo pressure.
Cortex Blitz Academy is an original GamesJi HTML5 game. It runs locally in the browser, supports touch and keyboard input, requires no API, and increases challenge continuously.
How to play
Calculate quickly, select the correct option, and maintain accuracy as the timer becomes shorter.
Hard endless mode: speed, enemy pressure or decision difficulty rises as you progress. Pause with P and restart with R or Play Again after a run.
Controls: Choose answer: tap or press 1–4. Pause: P.