One of the many unsolved mysteries of The Matrix Trilogy. What the hell is the Sentinel’s yellow gold flame energy doing to Neo? Afterwards, he knows they need to breach the sky.

gunkatana:

Sin Viper grinding the speed rails at various speeds.

You activate a speed rail by holding down the right trigger button. As long as you hold, your speed increases and you can zip across levels super fast; the caveat is that everyone knows where you’re headed!