I did the same, but played around a bit more and made an "AI" mode: maxScore = 0; setInterval( function() { if (score > maxScore) { maxScore = score

I did the same, but played around a bit more and made an "AI" mode: maxScore = 0; setInterval( function() { if (score > maxScore) { maxScore = score; } if (distance(hero.y, hero.x, ennemi.y, ennemi.x) < (vitesseEnnemi * 15 + 30)) { hero.y += (hero.y - ennemi.y) * speedLimit / distance(hero.y, hero.x, ennemi.y, ennemi.x); hero.x += (hero.x - ennemi.x) * speedLimit / distance(hero.y, hero.x, ennemi.y, ennemi.x); } if (spawn > PowerUpspawnRate) { hero.y += (powerUp.y - hero.y) * speedLimit / distance(hero.y, hero.x, powerUp.y, powerUp.x); hero.x += (powerUp.x - hero.x) * speedLimit/ distance(hero.y, hero.x, powerUp.y, powerUp.x); } else { hero.y += (reward.y - hero.y) * speedLimit / distance(hero.y, hero.x, reward.y, reward.x); hero.x += (reward.x - hero.x) * speedLimit/ distance(hero.y, hero.x, reward.y, reward.x); } }, 25); It's oddly fun to watch the little green guy pull off some sick dekes. If you want your green guy to flat-out avoid the enemy, just wrap the second set of conditions there in an else block. edit: Formatting for readability/copy+paste