Let's equip our robots with a handful of further upgrades, discover one of the five secret letters in the game (and the only one which I currently know how to find), and get ready for the last portion of the game.
EDIT: Since finishing this Let's Play, I have figured out what happens when you collect all the letters in the OVINE secret: Igor, your hacker robot, gains a laser and thus the ability to shoot. While this is potentially useful, I would say that considering how difficult it is to find the five letters in the secret, this reward is a bit underwhelming, so I won't be making a follow-up video demonstrating the secret.