Anachronox/MysTech Tunnels

Upper Alien Tunnels
After crossing the narrow bridge, turn left. After the following fight, pick the Lifeflower Petal by the wall. Make sure to collect these as you encounter them from now on, as they'll be useful later. Head back to the junction and go the other way. Save at the next TimeMinder, and hop on the jetski.

Lower Alien Tunnels
Getting off the jetski, head forward and grab the 2 HealGrease on the right by the crates. After the next fight, grab another 2 HealGrease by the lone crate on the right. After a fight with 2 Stare Bears and 2 Mean Moles, keep an eye out for a HealGrease Complete on a left pathway. Proceed to the next TimeMinder, save, and grab the HealGrease Complete on the left around the corner. Make sure you're healed up before continuing ahead to fight...

Continue on and grab the stone, which initiates a cutscene. Afterwards, Grumpos pays you $100, and you wind up back at the entrance, minus one DoorLord.

PAL-18
Stop by Whackmaster Jack's, and have PAL hack the dataport next to the ramp downstairs for a TACO. Also talk to Bean Fredicksson using Grumpos, and play along for a Pentagonal Prism (you'll be able to make use of this soon). For future reference, if PAL is injured in this area, he could hack the dataport under the table with the broken robot at Ghalla's for free healing. Now head to the Anachronox Tours Area.

Upon arrival, head up the path with the guard who wanted a photo of the speeder. There's a broken elevator that you can "fix" using PAL. Connect the "blue & red wires", then head through the "opened" hole and hack the dataport. A nearby closet will be unlocked with a TACO inside (and a sad vacuum).

Final Preparations
Continue up into Anachronox Tours, and have PAL talk to the robot just inside for a Cordicorps Shockclaw to equip. Then have Grumpos Yammer at the guy in front of the ticket booth to get him out of the way, and then buy your 2 Sender Station Shuttle Tickets.

Now head through the gates, around to the right, and save at the TimeMinder on the platform. Since we're about to leave the entire Anachronox area for a while, you might want to make a backup save here, just in case.

Following the guide thus far, you should have... 🇨🇴 🇨🇴 🇨🇴 🇨🇴 If you're missing anything, go back and take care of it before continuing. When you're ready to continue, walk up to the shuttle. On to Sender Station.
 * Vistin ThreeBeam
 * Vistin Spikehead
 * Cordicorps Shockclaw
 * 2 Pre-Owned Shieldcells
 * Eluder Band
 * Valesta's Bracelet
 * 7 TACOs
 * Credit for 2 Red Bipidri photos
 * Credit for 6 Anachronox Symbols