These are constructed similar to the Life Up and Energy Up parts, except that they require two stages to be completed. Whether you choose Life or Energy determines which part you get. Your character dashes faster. Should increase the amount of energy you get when you pick up a life or weapon energy capsule. Nearly doubles the number of times you can fire weapons.
X charges up significantly faster.
Zero's sabre turns light pink and can destroy some shots it couldn't touch normally. May also reduce the damage of viruses. I do not recommend giving this to Zero, as he is already invincible to viruses. Your character jumps slightly higher and thus farther. Your character walks faster.