Find the BRAINROT MORPHS: How to Get the New Secret Train Morph (172)

The newest addition to Find the BRAINROT MORPHS is not standing out in the open like most of the roster. The red train character sits inside a sealed underground room, and the only way in is to carry a TNT box to a marked patch of dirt and blow the ground open. The whole sequence takes under a minute once you know the route.

Quick answer: Bounce off the trampoline in the grassy area outside spawn, grab the red TNT box from the elevated grey platform, carry it to the dirt patch marked with white X’s near the tree, place it, then drop through the hole and touch the red train character.

Unlock the secret train morph with TNT

Leave the lobby and head outside into the grassy area on the right-hand side of the map. This is the same open patch of green you pass on the way to most of the outdoor morphs, so there is no obby or portal to clear first.

Player character walking out of the spawn area toward the open grassy section of the map — Leaving spawn and heading for the grassy area where the trampoline sits.

Walk onto the blue trampoline and let it launch you upward. Aim your landing at the raised grey platform above it, since a missed bounce simply drops you back onto the grass with no penalty.

The blue trampoline in the grassy area is the only way up to the platform holding the TNT.

Pick up the red TNT box sitting on top of the platform. Touching it attaches the box to your character and swaps your on-screen prompt over to a placement control.

Carry the TNT back down to ground level and walk to the brown dirt patch near the tree. The correct spot is marked with white X’s painted on the ground, and no other surface will accept the charge.

Stand on the marked dirt and use the PLACE TNT prompt. The box drops, detonates on its own after a short delay, and the explosion tears an opening in the ground.

The PLACE TNT prompt on screen as the player lines the explosive up with the marked dirt patch — The PLACE TNT prompt only appears once you are standing on the dirt patch marked with white X’s.

Drop straight into the hole. The underground room below holds the red train character, and walking into it claims the morph.

Route landmarks in order

Landmark	What to do there
Grassy area outside spawn	Starting point for the route
Blue trampoline	Bounce up to the grey platform
Elevated grey platform	Collect the red TNT box
Dirt patch with white X’s, by the tree	Use the PLACE TNT prompt
Hole opened by the blast	Drop in and touch the red train

How to confirm the morph unlocked

The COLLECTED counter in the corner of the screen ticks up by one the moment you touch the train, with 172 as the current total in the collection. Once that number moves, the morph is saved to your account and appears in the Morphs menu, so you can equip it again later without repeating the TNT sequence.

Equipping it turns your avatar into the red train character, complete with fire effects during movement. Hitting Reset or selecting your default avatar from the menu puts you back to normal.

Why the TNT does not open the hole

Only two things reliably stop this from working. The first is placing the charge on the wrong ground, since the explosion is scripted to the dirt patch with the white X markings and nowhere else. The second is losing the TNT on the way down, which happens if you reset your character or die mid-route, and the box has to be picked up again from the platform.

Note: the TNT box is the gate here, not the hole. If someone else on the server has already blown the ground open, you can drop in and collect the train without carrying anything.

Secret morphs like this one tend to sit behind a small interaction rather than a long obby, and the TNT dig is a recurring pattern in the game. If your counter is short of 172, it is worth checking the Morphs menu for the greyed-out entries first, then working out which of them are buried rather than out in the open.