What is the Parental Lock system code in Deltarune?

During Deltarune Chapter 3, you’ll participate in Tenna’s game show and receive rankings based on your performance. After receiving the results from your first round, you’ll arrive in a Green Room, which features a suspicious door blocked by a guard.

Upon convincing the guard to leave, you’ll travel down its hallway, only to realize there’s a parental lock system. What is Tenna hiding? What is behind this door? That’s what we’re here to find out. Let’s explore the parental lock system’s passcode in Deltarune Chapter 3.

What is the Parental Lock system code in Deltarune Chapter 3?

The parental lock system’s first passcode is 213. You can find the answer by interacting with the game console near the lock system’s doors. The character you play will determine how you find the answer.

First parental lock system code

If you’ve been following Chapter 3’s storyline without diving into secrets, you’ll play these games as Susie. To solve this puzzle as Susie, head to the left monitor, pick up one of the blue blocks, and toss it onto the button on the third monitor. Doing this reveals the third digit, “3.” From here, you can use Susie’s weed-pulling abilities to find “2,” and clear away the rest of the blue boxes to locate “1.”

If you’ve played the game behind the S-rank doors already, you’ll be able to play as Kris. Playing as Kris is slightly easier, as you can use their sword to swipe away at grass and boulders on the screens. Then, by pressing the blue button, you’ll spot the final number and find all three digits.

At first, it’ll appear on your screen as “123.” If you try to punch this into the door’s passcode boxes, it’ll show up as incorrect. The key is how each display is connected. The second monitor has brick walls along its left side, while the first has two exits. If we rearrange these two to be a linear sequence, the password becomes 213.

Second parental lock system code

After an exchange between Ralsei and Kris, you’ll have a second parental lock system code to enter. Like before, you can interact with the giant monitors to solve its puzzles. Like before, how you do this depends on the character you’re playing.

If you’re playing as Susie, you’ll notice that each path connects, albeit not linearly, across each screen. You will also find a key, but as you approach it, it’ll run away. Your goal is to pick up the two blue blocks and use them as barriers, trapping the key in a confined space so that Susie can collect it and open the door. Doing this reveals the passcode “1225.”

If you’re using Kris, you can use your sword to bash open the staircase, revealing the passcode instantly. This one is noticeably easier, but it takes some work to unlock.