Quick Answer
Grow the Battery Ball and insert it into the hall machine while your partner holds the lever. The seed machine only stays powered while your partner keeps standing on the sunlight plate, so nobody steps off early. To finish Xenobotany in We Were Here Tomorrow, first cross the plant routes and power the apparatus that holds the seed. Treat that seed with red and blue at the potion machine in the past, then plant it in the central water-filled planter.
How do you reach the first window in Xenobotany?
The first window is above the planting room; you need access to the potion machine in the past and your partner's plant diagrams. Follow the Xenobotany plant platforms instructions for this section and the route to the next exchange sphere.
How do you get past the Xenobotany climate control area?
The route continues upward through the climate control area, where you need the later plant diagrams and access to the electrical plants. Follow Xenobotany climate control access before moving on to the seed apparatus.
How do you get the Battery Ball seed from the machine?
Use the additional planter beneath the bridge to open the side room, then take its lift upstairs and complete the electrical connection while your partner maintains sunlight.
- Find the additional planter beneath the bridge. It sits diagonally opposite the other planting position. Look under the bridge rather than trying to enter through the upper window.
- Grow an electrical plant in that planter to open the side room. Once the door opens, enter the room to reach the lift.
- Use the lift inside the side room to reach the second floor. This gives you access to the upper electrical connection.
- Complete that connection. Have your partner stand on the sunlight plate and keep it held so the electrical plant stays grown and the machine stays powered.
- Return to the central apparatus and collect the seed. The lower doors are open, so use the lower route to get back instead of trying to jump back through the upper opening.
The Battery Ball seed machine needs continuous power while you collect its contents. Opening the side room gets you to the connection, but your partner still has a job after you reach the second floor. Keep them on the sunlight plate until the seed has been picked up.
Leaving the sunlight plate stops the plant's growth and cuts the power. If the seed cannot be collected, have your partner hold the plate again before you try the apparatus.
How do you grow the Battery Ball with the red and blue recipe?
Take the recovered seed to the original potion machine in the past, treat it with red and blue, then plant it in the central water-filled planter.
- Bring the seed back to the original potion machine. If the seed carrier is in the future, use an exchange sphere to arrange access to the past before processing it.
- Set one potion color to red and the other to blue. Both colors belong to this seed's treatment.
- Insert the recovered seed into the machine and press the button. Take the treated seed when it comes out with its color tags.
- Carry it to the central planter containing water and plant it there. Water is the growth condition for this seed.
- Retrieve the resulting Battery Ball. You now have the object to take back to the hall machine.
The preparation happens at the original potion machine, before planting. Carrying the recovered seed straight to the water planter skips that treatment. Return to the machine with the seed, apply the red and blue recipe, and then bring the treated seed back to the planter.
The central water-filled planter is for the Battery Ball seed. If you are still trying to reach the upper route beside climate control, return to Xenobotany climate control access for that earlier step.
How do you insert the Battery Ball into the central machine?
Return to the central machine in the hall and insert the Battery Ball while your partner holds the corresponding lever in the other timeline.

The Battery Ball going into the central machine in the hall.
- Carry the grown Battery Ball back to the hall's central machine.
- Ask your partner to find the corresponding lever in the other timeline and hold it.
- While the lever remains held, place the Battery Ball into the machine. Holding the lever enables the insertion point.
If you reach the apparent socket but cannot place the ball, coordinate with your partner before looking elsewhere. The missing interaction is resolved by the lever at this central apparatus. Have your partner keep holding it while you perform the insertion rather than releasing it as you approach.
If you seem trapped in the room on the return journey, look below for the ventilation passage and use it to leave.
Once the Battery Ball is inserted, continue with the We Were Here Tomorrow walkthrough.
FAQ
Open the side room using the planter beneath the bridge, ride its lift upstairs, and complete the power connection. Your partner must maintain sunlight while you return to collect the seed.
The recovered seed needs red and blue treatment at the original potion machine in the past. After processing it, plant it in the central planter containing water and collect the Battery Ball.
Your partner must keep the lever held in the other timeline to enable insertion at the central hall machine. Place the Battery Ball while they are holding it.