In the game you get to a point where you are given the option of fighting either with or against White Glint.

If you choose to fight alongside the White Glint and win against the other two mechs you get his blueprints and parts as a reward.

Go into the access mode and build the craft.

If you build it exactly, you should find that the craft has infinite energy while boosting.

Note: if you change ANY parts this doesn't work as it only works with the blueprint loadout, editing the paint scheme is okay though.