10 articlesOne of the many secrets in DELTARUNE Chapter 3 involves solving a bunch of parental lock system doors by using codes. The codes themselves are found through solving minigame puzzles, which can be a bit tricky due to how they work. Nonetheless, our quick guide will help you find these system codes with ease!
Solving Parental Lock System Codes | DELTARUNE Chapter 3
You can find the Parental Lock system code puzzles behind the room blocked by a guard after completing the first round of Tenna’s game show. Convince the guard to leave by choosing “Press His Buttons” and then go into the door behind them.
Now, walk down the hallway and you’ll eventually reach a game console with three monitors and the first locked door. Use the console to play a minigame and solve a quick puzzle, though how you solve it depends on whether you use Susie or Kris.
Of course, it’s worth noting that solving the minigame puzzle itself is entirely optional. As long as you know the code, you can input it into the door. Regardless, here’s the basics of how to solve the puzzle:
DELTARUNE Chapter 3 – How to BEAT Roaring Knight BOSS & Get Shadow CrystalOct 24, 2025
DELTARUNE Chapter 4 – Golden Piano Note Sequence CodeJun 7, 2025
DELTARUNE Chapter 4 – Get Secret Shadow Crystal From Beating Green Old Man BOSSJun 7, 2025- Susie – You’ll need to grab the blocks on the first monitor from the left and push them away from the corners to reveal one number. Grab one of them and throw it into the orange hole on the third monitor from the right to reveal another number. Lastly, pull out all the weeds in the middle screen to reveal a final number.
- Kris (if you entered the S Room) – Just use the sword to break everything and reveal the numbers. There will be a blue button on the rightmost screen that you can step on to reveal that screen’s number.
The tricky thing here is that these monitors aren’t really in the proper order. Pay attention to the brick walls in the minigame itself. You should notice that the leftmost monitor belongs in the middle instead. As such, the final code for the first door should be 213.
The Second Door and Beyond
After crossing the first door, continue down the hallway after a short scene to reach another console with monitors. As before, interact with it to play a minigame. Also as before, the monitors aren’t placed properly. Pay attention to the paths and walls on them to figure out how they connect.
This time, your goal is to move the key in the top left monitor and bring it to the monitor on the bottom right. The key moves when you approach it, so you’ll need to use the blue blocks to block its path if you’re playing as Susie. If you’re using Kris, though, you can just break the door with your sword!
Either way, go into the revealed room and you’ll be in a sort of black void with colored lines on the ground. These colored lines are the numbers, you just need to figure out how the monitors connect to read them properly. Of course, we’ll save you the work here: the code for the second door is 1225.
Now, beyond that, there are no more Parental Lock system codes for now in DELTARUNE Chapter 3. However, you’ll need to input one other such code later on in the game. We won’t spoil when that happens, but the code for that third door is just 000000. Keep that in mind!
Nonetheless, that’s all that’s required for solving the parental lock system and its codes in DELTARUNE Chapter 3. Do you also want to get the Ice Key required for the secret boss? Well, let us help! Check out our guide on how to get the Ice Key.
