Rooms and goals

A room is rarely just "kill everything". The marks on a door tell you what is behind it, and the top wall tells you the rules once you are inside.

Room goals

Goal	What to do
Hunt	An elite is marked. Bring it down and the rest scatter: the room clears. Pays a reward and XP.
Hold out	Foes keep coming. Survive until the toll ends: the room clears when the clock on the top wall runs out. Pays an item.
Race	Clear the room fast: the sooner it clears, the more XP it pays. The bar on the top wall shrinks as time passes: what is left when the room clears is what you earn.
Thief	A thief runs off with a reliquary toward the far door. Catch it before it escapes for a reward and XP.
Crossing	No foes here, but the room's dangers run quick. Cross to the reliquary pad and hover on it. Pays XP and an item.
Reliquaries	Three sealed reliquaries. Hover by one to break its seal: each starts its own wave and pays its own reward.
Nests	Nests on the walls keep sending foes. Shoot the nests down; the room clears with the last foe after them. Pays XP and an item.
Wards	Candles shield every foe while they burn. Shoot the candles out. Put out every one for a reward and XP.
Motes	Motes drift through the fight. Fly through them to catch them: each pays XP, all of them an item.
Trial: melee only	Your guns are silent for the whole fight. Tap toward a foe to strike it with your melee weapon; the Parry still works. Clear every wave for a reward and XP.
Trial: no hit	Take no hit through every wave. Keep it for a reward and XP. One hit breaks the trial: the room still clears, with no reward.
Trial: before the bell	Beat the bell: clear every wave before the clock runs out; the clock is on the top wall. In time: a reward and XP. Late: the trial breaks and the room just clears.
Trial: parry	Cut the set number of shots with the Parry before the last of the waves falls; the count is on the top wall. Done: a reward and XP.
Trial: grounded	No dash in this room, and take no more than one hit through every wave. Keep it for a reward and XP.
Room rule: ricochet	Enemy shots bounce once off the walls here. Watch the angles.
Room rule: tempo	A bell keeps time here: every attack and hazard starts on its beat. Listen for the tick and move between beats.
Room rule: armoury	A loaner gun for this fight. Your own gun is one tap of Switch away, and your guns come back when the room clears.
Surprise: the mirror	Something wears your shape and fires your own gun back at you. Bring it down for a reward and XP.
Surprise: a memory	A Guardian you have beaten returns as a memory, weaker than before. Bring it down for a reward and XP.
Surprise: heavy shots	Every enemy shot here is twice the size and slow. Weave between them and clear the room for a reward and XP.
Surprise: the turning weight	This room's weight turns: everything is pulled toward one wall, and the wall changes as the room turns. Clear it for a reward and XP.

Room leads

Most ordinary fights are led by one of the sector's two named leads: a bigger foe with a ring of runes at its feet, its name and health bar on the top wall, and three warned attacks of its own. Treat it as a small boss. Up to three helpers come with it, and the fight turns as it weakens.

Omens

Almost every ordinary fight carries an omen, a condition that changes how the room plays. Each one announces itself as the fight begins. Later sectors may pair two. Here are all 56:

Show every omen

Gale Hall: the wind carries every shot. Fly upwind of them.
Undertow: currents run across the floor. Ride them or cross them.
Maelstrom: the whole room turns about its middle.
A black star pulls at you and bends every shot.
Black ice: your thrusters slide. A dash stops you dead.
Bellows: jets blast across the room and blow the shots away.
Lodestones pull and push, and turn at the change of their sign.
Deep water: every shot slows the farther it flies.
Bronze walls: touch one and it throws you back.
Snow piles where nothing moves. Keep your roads open.
This room's weight turns. Watch the walls.
Lights out: only your lantern. Shoot the braziers to light them.
In the shadows they lose you and fire where they last saw you.
Spore mist hides them. Your path clears it.
Candles are the only light. Their shots snuff them; you relight them.
Darkness, but the lightning shows them.
Glass phantoms: only the true one casts a shadow.
Hall of mirrors: every shot bounces once.
The east and west walls open into each other.
Thorns close in with every wave. Clear them fast.
Vines grow and stop every shot. Cut your lanes.
Two rifts are joined: what enters one leaves the other.
Shoot through the great lens: your shots grow, theirs dissolve.
A glass screen splits the room. Break it or fight round it.
Stopped clock: time slows while you hold still.
The forge floor burns where you linger. Keep moving.
Their shots wait for the bell. Move between the beats.
Night and day: tough in the light, frail in the dark.
The tide comes and goes. In the water every shot is slow.
The room quickens until a wave falls.
Hush: no guns here. Your blade and your parry are quick.
Your shots hang in the air. Dash to loose them.
A borrowed gun for this room: a borrowed gun.
Grave harvest: grazing their shots feeds your gun.
Thruster surge: dash freely. Your trail burns them.
Your reflection fights beside you.
Glass hull: every hit costs two plates; every shot hits twice as hard.
A great bell hangs here. Ring it with your shots.
Sluice gates: hover on a plate to flood that side.
Sleeping sentinels. Hover beside one to wake it.
Crystals burst into shards that cut everyone.
Spore pods: burst them to slow everything in the cloud.
A lantern waits. Carry it: its light weakens them.
Bars ring the middle. Fly the track.
Bars line the way. Run the gauntlet.
The walls slide. Mind the grinding marks.
The orrery's arms turn. Ride behind them.
The roof gives way with every wave.
Molten pours harden into walls.
Lightning runs between the rods. Stay off the lines.
A loose bell rolls through the room.
The moon's beam sweeps the room.
Ink creeps after you. Lead it through them.
Pendulum blades swing. Cross between them.
A ghost train runs these rails. Watch for its lamp.
Where they fall, thorns bloom.

Room forms

An ordinary fight may be laid out in one of thirteen forms: moats, islands, naves, cells and rooms that change as the fight goes on. The ones to learn:

Drops are floor to you, because you fly. They are walls to enemies that walk, and one knocked against the edge falls. Fliers and bullets cross freely.
Cracked stone can be shot down, by you and by enemy fire, so cover does not last.
Shifting rooms warn you with marks on the floor before they change.

Things in rooms

A bell on a post: strike it and the room's trap springs once. Use it on enemies.
A chandelier: shoot it to drop it where it hangs.
Censers: they blow up when shot and can hurt you too.
Sleepers ("zz"): strike them first for a bonus.
A falling reliquary: grab it within 8 seconds.
A chest: from sector 2, one chest a sector may be a mimic. It has tells, and pays more when it falls.
Enemy crossfire: shots that fly far enough hurt the enemies they meet.

Dares

A plain fight may offer one optional dare on its top wall, paying an extra reward:

Cut a set number of shots with the Parry.
Graze a set number of shots.
Land a set number of blade strikes.
Down a set number of foes with blasts.
Drop the chandelier on a foe.
Strike a set number of sleepers before they wake.

In a cleared room

A clear's reward waits for the last enemy to fall, then lands on the floor. Fly onto the one you want.

Offering altar: hover by it for a free gift.
Bell of Defiance: makes your next fight harder, in exchange for double XP and a reward.
Cursed reliquary (from sector 2): a reward and an item now, but any hull hit fells you until ten kills or a fall ends the curse.
Vault: one side room a sector, behind a barred door. It opens with a Wardkey from the sector's elite, by arriving soon enough, or on a streak of twenty kills without a hull hit.

False walls and hidden bosses

False walls open only when you press against them. They stand off the middle of their side. In sectors 1 to 4 they glow. From sector 5 nothing marks them at all, and the Sector Complete banner counts the secrets you missed.

Behind them wait hidden bosses and supply caches. Every sector holds several, and from sector 2 one of them is an echo lair where the previous sector's Guardian returns. They are optional, but beating 2 of them opens the Guardian's door early.

The Wakeful

Linger in a sector for seven minutes without resting at a dock and a toll warns you, then an untouchable hunter enters your fights. It drifts through walls and costs a hull plate on touch. Keep moving, or rest at a dock.