🌀 Rifts

Your rift gun opens two rifts: one blue, one orange. Walk into one and you come out of the other. Rifts only open on the light walls, floors and ceilings, not on the dark ones. Shooting a colour again moves that rift.

👆 On a phone or tablet

Put your left thumb down on the left half: a stick appears, push it to walk. Your right thumb on the right half looks round. 🔵 and 🟠 fire, ⤒ jumps, ✋ picks up and puts down.

⌨️ On a computer

Click the chamber first. W A S D walk, the mouse looks, the left button fires blue and the right button orange. Space jumps, E picks up and puts down, M shows the map, P pauses. A gamepad works too: the sticks walk and look, the shoulder buttons fire, A jumps, X picks up.

🏃 Speed in, speed out

Whatever goes into a rift comes out of the other just as fast. Fall a long way into a rift on the floor, and you fly out of the other one! Falling never hurts.

📦 Cubes and buttons

A red button opens a door while something heavy is on it: you, or a cube. Pick up a cube with ✋ and carry it, even through a rift.

✨ Fizzlers

Walking through a shimmering fizzler closes your rifts, and a cube you carry through it vanishes (a new one drops in its place). A shot can't go through one either.

🟢 Goo

Goo is deadly: fall in and the chamber starts again. On 🐣 Cadet the goo just pushes you back out.

🐣 How much help

Every chamber is the same on every rung. On 🐣 Cadet the light panels you need glow, and goo pushes you back. 🚀 Pilot is the chambers as made. 🦅 Ace aims a little less for you.

⚡ Balls, platforms, switches, turrets

From chamber 31 on, a new idea opens every ten. A glowing energy ball bounces until a catcher takes it: send it through your rifts into the catcher and a door opens (don't let it touch you). Moving platforms carry you over goo: step on when one stops. A ⏱️ pedestal (press ✋ beside it) opens a door for a few seconds. A turret shoots when it sees you: open a rift under it and it falls through, or drop a cube on it.

🟩 Pads, bridges, lasers

From chamber 81 on: a green launch pad throws you through the air when you step on it. A light bridge is a beam you can walk on. Open a rift on the wall where it ends and the other on another wall: the bridge comes out there. A red laser hurts, so keep out of it. It goes through rifts too: send it onto its catcher to open the door. A prism cube turns a laser: put it down facing the way the laser should go.

🔵 Tractor beams and gel

From chamber 121 on: a tractor beam is a see-through tube of light. Step in and it carries you along, floating; push to the side to get out. It goes through your rifts too. Gel pipes pour gel, and gel goes through rifts. Blue gel bounces you: fall onto it from high up and you bounce just as high. On orange gel you run very fast, so run into a rift. White gel lets a rift open on a dark wall or floor.

🏗️ Make a chamber

🏗️ on the menu builds a chamber of your own. Pick a tool, then tap the chamber: 🧱 adds a block, ⛏️ digs one out, ⬜ and ⬛ make a panel light or dark, 🟢 puts goo on a floor, 🧍 is where you start and 🚪 the way out. Drag to turn it round. 🤖 Check it: the robot tries to get through with the rift gun, and once it has, you can play it.

🗺️ The map

Before a chamber starts, it is built in front of you. 🗺️ shows the rooms you have seen so far (on 🐣 Cadet, all of them): drag to turn it, pinch to zoom.

🔢 Chambers

The first eight teach you everything. After them, chambers come in tens: the first three of a ten are one room, the next three two rooms, then three, and the tenth is the big one, and every few tens they grow. Halls turn corners, ramps climb, towers go up over the rooms below. Finish a chamber to open the next.

⛸️ Ice, and big drops

Some floors are ice: you are slow to start and slow to stop, and if you come out of a rift fast you slide a long way. Falls never hurt, so use them: a rift in the ceiling drops you over a wall, and a long fall into a floor rift sends you flying out of the other one.

🛝 Ramps and balconies

Ramps climb smoothly; you can't walk up one from its high side. Some light panels can't be seen from the floor: walk up the ramp to the balcony and look over the wall from there.

🔴 More colours

Later chambers have three or four colours. Into one, out of the next: 🔵→🟠→🔴→🟣→🔵. The chip under the chamber's name shows the chain. A rift whose next colour is shut goes nowhere. On a computer, 1 to 4 fire each colour. A rift the chamber keeps open can't be moved: walk out of it, then back in, and you come out of the next colour.

🔊 Sound

🔊 at the top turns it off, and it stays off in every other game here too.