Welcome to Flame Over! This rogue-like fire-fighting game has a lot of ins-and-outs that are not covered by the tutorial levels. This guide should help you figure out the rest of the game so that you can be more successful in your attempts to save Infernal Industries.

This guide is still being built as I explore the game. Please let me know of any areas where I can improve the contents or where I got things just plain wrong.

There are a ton of mechanics that the game's tutorial doesn't outright teach you that can appear on any floor.

• Axes and Breakable Doors
  There is definitely some system in the game relating to the fire axe and breakable doors. However, I have not yet determined the details. My recommendation in the interim is to take a new axe as late in a floor as possible, so it is "fresh" for the next floor.
  
• Backdraft
  
  Sometimes, the fire from a room will "peek" under an unopened door. If you open the door while the fire is doing this, the door will explode and you will take considerable damage. This is called "backdraft." You can avoid it by spraying or extinguishing the door until the fire is no longer visible.
  
• The Starting Room
  The room that you start the floor on is special for a number of reasons. First and most importantly, the timer does not start until you open the door to leave the room. Use this to evaluate the floor's layout (using your Thermal Goggles and Heartbeat Sensor, if you have them) and determine where you want to go first. Secondly, fire can't ever enter this room. Take advantage of this while fighting the fire in the first room.

The tutorial touches on fireballs (helpfully mentioning that fireballs won't start until you enter the room), but there are some other mechanics to keep in mind. This was originally part of tips and tricks, but knowing these effects is important enough to call out in its own section.

• Spawning Rules
  To expand on the tutorial already taught us, only fires in the room you're in will spawn fireballs. If you leave a room alight, the fire will spread naturally if possible but never by fireball.
  
• Flight Rules
  Fireballs have no qualms against flying over or through things. The only things that will stop a fireball are a room wall and a spray of water/extinguisher. This means that it can pass right through things that you can't walk through, like the server racks on the Executive level, and eat your waiting compatriots as you start to run out of time and health (I'm not bitter, I swear...)
  
• Types of Fireballs
  There are four fireball types that I currently know of.
  
  1. Triple Fireball
     The triple fireball is the weakest of the three fireballs, but launches as a set of three in a cone from the source fire. This type of fireball has a lot of trouble with wet surfaces, and usually can't spread if you keep the room coated with water.
     
  2. Strong Fireball
     This is a single strong fireball, aimed at you or something standing in the room. This type of fireball can one-shot a cat or a human, and can do upwards of three-quarters of your heat tolerance in damage if it hits you. It can also spread fire pretty effectively if it lands on something combustible. Luckily it is much slower than the triple fireball. Try your best to shoot these down mid-flight.
     
  3. Fire Line
     This slow-moving fireball moves in a line and catches everything in its path on fire (including the ground) until it hits a wall or your hose/extinguisher. This deals as much damage as the strong fireball and is much scarier. It also has a tendency to have loose hit detection in doorways and continue on into the next room, reigniting things you have probably already put out. Kill it with water as soon as you possibly can.
     
  4. Fire Wall
     In longer rooms, you will sometimes see an entire wall of fire send a wave down the length of the room. Any water/extinguisher will stop it, and it doesn't seem to do a lot of damage, but it is highly combustible.

There are a number of items in Flame Over, and knowing what they all do is vital to getting to the top of Infernal Industries safely. There are 9 items that will appear in your inventory, and a number of items that will not.

• Gas Mask
  The gas mask protects you from the dangerous gasses that show up in the Labs (and presumably the Factory). While equipped, you will not take any damage while standing in gas.
  
• Holy Water
  When equipped, the Holy Water causes your hose to heal people when sprayed.
  
• Speed Boots
  As the name implies, the Speed Boots make you move faster while equipped. Be careful using these while you have anyone following you, as they will not speed up to match you and will get left behind rather quickly.
  
• Spiked Boots
  I haven't encountered the Spiked Boots in the wild yet. I will update the guide once I have figured out what they do. I've so far determined that they do not put out fires by walking on them.
  
• Thermal Goggles
  The Thermal Goggles will show you which rooms still have fire in them on both the mini-map and the full map.
  
• Heartbeat Sensor
  The Heartbeat Sensor shows you where all of the employees, cats, and Miss Ions are located on both the mini-map and the full map.
  
• Catnip
  Using Catnip causes each cat following you to get very, very happy, to the point of healing itself and other people/cats following you.
  
• Defibrillator
  The Defibrillator can be activated while standing close to a downed human (sorry, no reviving cats) that is showing a partial skull icon to restore them to full health. Each person can only be revived twice.
  
• Magnifier
  The Magnifier (called the Magnifying Glass in the shop) allows you to see hidden objects for a short period of time. Once you have activated the Magnifier, you can switch to another item while retaining the effect (I like to pair this with the speed boots).

• Water Bombs
  Extra water bombs can be found as hidden items or bought from the shop every two floors.
  
• Extra Time
  Extra time can be found as a hidden item or bought from the shop every two floors.
  
• Hearts
  Hearts can be found as hidden items or bought from the shop every two floors. Note that buying a heart from the shop will refill all of your hearts.
  
• Extra-Large Water Tank
  Does what it says on the tin, your water capacity goes up significantly after purchasing this from the store.
  
• Golden Hose
  This is one of the best items in the game. The golden hose is a passive upgrade item you can by at the store that causes your hose to be far more effective at all ranges. It's so powerful that it actually pushes you backward while using it. It almost makes your extinguisher useless. It still won't put out electrical fires or gas sources, though. Additionally, this may also use your water faster than the standard hose (I haven't tested this yet)

There are 16 floors of the Infernal Industries building, split into 4 levels: Office, Executive, Labs, and Factory. Each level has unique hazards and missions, which I will go over here.

The first level is mostly unremarkable. The tutorial takes place here, so you can explore it for free relatively easily.

Miss Ion's Missions

• Lost Property
  Miss Ion needs her bag before she will leave. She will tell you what kind of room it is hidden in (Reception, Corridor, Office, etc.). You may be able to find her bag before you talk to her; I have not yet cofirmed this.
  
• Paper Chase
  There are a number of secret documents that need to be brought to the mail drop (marked with an ! on the map). You need to drop 5 documents in the box, and there are always more than 5 in the level. This can be completed before talking to Miss Ion.

The Executive level is more difficult than the Office in terms of the amount of fire in each room and the fact that the room layouts will generally contain more things to move around, but nothing new in term of mechanics or hazards. But hey, now you can draw water from hot tubs!

Miss Ion's Missions

• Safe Cracker
  The safe has a number of valuables in it that Miss Ion won't leave the building without. Once you've talked to Miss Ion, you can open the safe that is on the floor (marked with a ! on your map). You'll need to spam on the Search button in the room to collect an arbitrary number of expensive things and then return to Miss Ion.
  
• Missile Memory
  There are four ! rooms marked on the map. Each room will have a number inside of it, 1 through 4. Miss Ion will tell you the order in which to activate the rooms to shut down the missiles. This is random every time, so although you can theoretically do this before talking to Miss Ion, good luck guessing the code.

Once you get to the labs, the environmental hazards start to kick up considerably.

• Gas Leaks
  Some rooms will be filled with a green gas. The gas will cause constant damage while you are not wearing a gas mask. There will be a jet attached to a wall somewhere in the room. Using the extinguisher on it will shut off the gas.
  
• Toxic Waste
  Barrels of unidentifiable green goop litter the labs. It can cause clouds of gas similar to fire that need to extinguished (the hose will have no effect), and it can spill onto the floor in a way that needs to be hosed down (standing on it will cause damage; this may be where the Spiked Boots come into play). These barrels will continue to spill periodically as long as you are on the floor.
  
• Vents
  Some rooms have broken air vents on the walls. These vents will occasionally spit out weak fireballs while you are in the room, regardless of if there is any fire in the room. Be careful when running by them with followers, and make sure to put out an fires they ignite.

Miss Ion's Missions

• The Truth Is In Here
  The lab has been doing experiments on extraterrestrials, and Miss Ion needs you to destroy them. There are 8 aliens on the floor inside of little boxes. Using the box closes the lid and causes it to smoke (not an electrical fire). You can complete this before talking to Miss Ion.

I'll be honest: I haven't gotten here yet, so I have nothing to tell you about the Factory.

Miss Ion's Missions

• Nothing yet...

You may be wondering what you're supposed to do with the tokens that Miss Ion drops for you, and all the money that you have when a run is over. That question will be answered the next time you try to make a run, and the Upgrade screen appears. There are a number of categories to upgrade, and each upgrade is permanent. There are only two categories unlocked initially. You must spend Miss Ion tokens to unlock the other categories. Each category can be level up four times.