Soul's Crossover X How to Enter the True Lab
Find the True Lab update route in Hotland, prep your loadout, and clear the secret Lab wing.
The True Lab is a secret Hotland / Laboratory wing added in a dedicated True Lab update for Soul’s Crossover X. Players hunting deeper Undertale-inspired content past the standard Lab (Mettaton) need this route. Community walkthroughs — including the video embedded mid-page — show the entrance path and the post-update layout. Use this guide as a structured checklist, then confirm any patched door requirements in-game.
If you are still early, finish Getting Started and farm Justice shards in the normal Lab first. True Lab is a mid-to-late progression space, not a starter zone.
What True Lab is in UTSRX
In Undertale lore, the True Lab sits beneath Alphys’s laboratory. Soul’s Crossover X adapts that idea as an optional / secret map wing with its own enemies, atmosphere, and update-specific rewards. It is separate from:
- The standard Lab / Core Mettaton fights used for Justice Soul Shards
- Underswap (reset-gated AU void)
- The DBZ event Dragon Ball zone
Treat True Lab as Undertale-track secret content that pairs with Hotland progression and the Map guide.
Prerequisites before you search for the door
- Reach Hotland comfortably — Kindness / Perseverance / Justice souls help (All Souls).
- Know the normal Lab layout so you can spot the new True Lab branch after the update.
- Bring a reliable weapon from the Weapons tier list and at least a mid-tier reforge.
- Redeem Codes so you have Gem buffer for emergency reforge after deaths.
- Watch the mid-page video once on mute so the camera path is familiar before you replicate it live.
Reset count is not the same gate as Underswap or DBZ. True Lab is about finding the updated Hotland Lab entrance, not the lobby reset room. If a future patch adds a level or quest flag, the in-game prompt wins over this page.
Step-by-step: entering True Lab
- Travel to Hotland using your usual teleport or overworld route (Map).
- Enter the Laboratory area players already use for Mettaton — do not confuse it with Kame House or Underswap portals.
- Look for the True Lab update path — community clips show a newly accessible wing / door after the True Lab patch. Follow the same turns the video uses (elevators, side halls, or marked Alphys-style props).
- Interact with the entrance trigger (door, panel, or floor transition). If nothing happens, you are on the wrong hall or a hotfix moved the door — rejoin and retry.
- Load into True Lab and clear the first enemy pack before exploring deeper for chests or bosses.
Keep a mental breadcrumb trail. Secret wings in UTSRX often share textures with the main Lab; the video camera path is the fastest way to avoid looping the wrong corridor.
What to do once inside
- Clear trash packs for Gold and EXP while you learn new telegraphs.
- Hunt update-specific drops — True Lab patches often add unique enemies or materials that do not appear on the standard Enemy Drops Hotland rows until we merge them.
- Screenshot new NPCs or craft options and cross-check Discord via Links if a recipe looks unfinished.
- Leave and return after deaths — secret wings sometimes reset spawners differently than open Hotland.
If you came for Justice shards only, you may still farm Mettaton in the normal Lab. True Lab is for players chasing the update content and completionists filling the Wiki checklist.
Recommended loadout
| Slot | Suggestion |
|---|---|
| Soul | Justice or higher — Kindness if you are learning patterns |
| Weapon | Empty Gun / Justice Set or better boss drop |
| Mobility | Tem Soul optional for awkward Lab geometry |
| Consumables | Keep Gem buffer; reforge after a keeper drop |
Party up when possible (max 10). Secret areas with dense packs favor shared callouts from Controls familiarity.
Troubleshooting
| Problem | Fix |
|---|---|
| Cannot find the door | Replay the embedded walkthrough and match camera turns exactly |
| Door visible but locked | Check quest / level prompts; finish Hotland story flags first |
| Empty instance | Server hop — some secret spawns lag on fresh servers |
| Died and lost the path | Return via Hotland Lab, not Underswap or DBZ portals |
| Confused with Mettaton Lab | True Lab is the update wing; Justice shards still drop from Mettaton routes |
How True Lab fits progression
- Early game → Ruins / Snowdin / Waterfall
- Mid game → Hotland + standard Lab (Justice)
- True Lab update wing → secret Hotland content
- Pre-reset → Barrier / Asgore / Chara prep (How to Beat Bosses)
- Post-reset → Underswap, then DBZ after two resets
You do not need True Lab to finish Seven Souls, but completionists and lore fans should clear it before moving entirely into anime crossovers.
Related pages
- Map Guide — Hotland and Lab orientation
- Enemy Drops — main drop tables
- How to Get Soul Shards — Justice / Lab farms
- How to Beat Bosses — Lab and Barrier bosses
- Updates Hub — patch notes that mention True Lab
- Guides Hub — full tutorial index
True Lab rewards players who explore past the obvious Mettaton hallway. Follow the update route, clear the wing, then return to your main soul and reset goals with one more secret zone checked off.
Frequently Asked Questions
Quick answers to the most common questions.
Where is the True Lab in Soul's Crossover X?
True Lab is a secret wing tied to the Hotland Laboratory area, added in the True Lab update. Enter through the Lab path players already use for Mettaton, then follow the update-specific door shown in community walkthroughs.
Do I need resets to enter True Lab?
No. True Lab is Hotland/Lab exploration content, not the Underswap or DBZ reset gates. You still need enough combat power to survive Hotland.
Is True Lab the same as the normal Lab for Justice shards?
No. The standard Lab/Core Mettaton fights remain the Justice Soul Shard route. True Lab is the secret update wing with its own layout and rewards.
Why can I not find the True Lab door?
You may be in the wrong Lab hallway, on a server before the update assets loaded, or missing a Hotland progress flag. Rejoin, follow the embedded video path, and confirm the door interaction prompt.
Should I clear True Lab before DBZ?
Clear it when you are comfortable in Hotland. DBZ still needs two resets and is a separate anime track — True Lab does not replace that requirement.