The easiest weapon to do this with is the BI-55 Hand Cannon. This is for a few reasons: 1) it only has four upgrades, 2) those upgrades are cheaper than all the other weapons too. The alternate fire “TK23 Boom Bullets” upgrade, for instance, is only 1800 credits, while one of the top upgrades for the Stun Baton is 2700.

In terms of the best way to get credits. That’s a case of looting everywhere, and sacrificing inventory slots for loot to sell - which is mainly excess syringes, excess ammo and all kinds of sellable goodies and what not. Upgrading your equipment is the key to making the game that bit easier, so regardless of this trophy, you’ll need to do this throughout the game anyway.

Maximum Security difficulty is no joke. It's a bit of a slog in truth, but it's not impossible, by any stretch of the imagination. Conserve your ammo, master the dodging mechanics, use stealth where possible and you should be okay. In terms of your upgrade path, making sure you unlock the 'blocks do no damage' perks (in the stun baton tree) is imperative, as is upgrading the GRP - all of it, if you can. The alt-fires on all the guns are great, but you'll rinse your ammo that way, so don't rely on these too much or even unlock them in the upgrade tree. The GRP should be your go to strategy, as 1) it regenerates, and 2) if you upgrade the throw, you can not only use enemies as weapons or crush them into walls, but it gives you some much needed breathing room.

And finally, make sure you get all the weapons too. The locations of which can be found here in our weapons blueprints locations guide.

In Chapter 3, 'Aftermath', you'll be introduced to a form of the game's collectibles, "implant bios." The implant bio is effectively the chip in the back of the neck and there are usually five or six per chapter that you can collect. Some are optional, some are mandatory, and because there's no chapter select or New Game Plus, if you miss one, you have to redo the entire playthrough (or load an old save if you have one and go from there).

Fear not though, folks, if you follow our implant bio collectibles guide, you won't miss anything!

In order to unlock this trophy, you need to find two secret rooms located in two completely different chapters.

The first secret room can be found on the left side of the Machine Room (in Chapter 3, 'Aftermath'). Before you go down, head into Workshop B415 and then take the duct on the right. Then, follow the corridor all the way to the end to get access to this secret room. The audio log is at the table at the end.

The second secret room can be found in Chapter 6, 'Below', when you’ve made it through the Power Tunnels and are in the Power Plant. After making your way through the bottom floor, you’ll come across a ladder to go up a level. Directly opposite that ladder (with the Power Reactor control room on your right) is a small hole in the wall with a TIE Fighter-esque symbol to its right. Go in the hole and follow the path all the way to the bottom until you come to two large doors like you encountered at the first secret room. You can bypass the doors to the right where there’s a hole in the wall. Go through it and to the end of the room to pick up the audio log. Once you have done that, you'll unlock this trophy.

If you follow our implant bio collectibles guide, both are mentioned in there too.

In Chapter 3, 'Aftermath', about midway through the chapter, you’ll receive the GRP, which is basically the game’s “Kinesis module.” All you need to do for this trophy is use the GRP on 25 enemies -  and then press . You don’t need to kill them, or anything, just grab them. Luckily the battery power regenerates as well, so you don’t need to be that careful when you come to using it. Grab 25 enemies and this trophy is yours.

This is pretty much unmissable as an opportunity to take down a security bot presents itself during the game’s 'Aftermath' chapter. Shoot the robot in the head using the Hand Cannon, and make sure to use cover so you don’t get blasted to mulch. After a few well-aimed shots, the bot will fall to the ground and the trophy will unlock.

Story-related, cannot miss.

You’ll encounter the first “two-head” midway through Chapter 6, 'Below'. After you’ve restored power to the transport platform at the Power Plant, and made your way back to the platform itself, after clearing a few waves of enemies (namely 3: one that spawns at the back and then one on either side), the two-head will make its way onto the platform, and you have to fight him.

It’s not the easiest of fights and you’ll need a ton of ammo. But you can get into a routine of running to one crate (while reloading) and then turning and pumping 4 shots of your hopefully mostly upgraded Skunk Gun into his face, you'll be fine. In this instance, the Skunk Gun is better than the Riot Gun, because it has a better rate of fire (unless you’ve fully upgraded that as well as the Skunk Gun). And then rinse and repeat.

If you have the explosive alt-fire on the Hand Cannon, that’s handy too. After a few shots it should go to its knees for a few seconds. Use that time to search for ammo or heal, or reload and change weapons. Or, if you’re good, unload some more shots into its head(s).

Finally, once you’ve done enough damage it’ll lose a head (around 50%), and then, when you’ve done another 50% more damage, it’ll go down once and for all. His attack patterns don’t change and the one major rule for this fight is: don’t let it get in range to attack. If you do, you’ve already lost… probably. He's practically useless at range though, so use that to your advantage.

Once you've got the GRP in Chapter 3, you'll be able to unlock In Striking Distance  . To do so, you're going to want to pull an enemy towards you, and instead of throwing them, melee them with the baton instead. Do that and you'll unlock this trophy.

A couple of things to note if you're struggling:

This one is perfectly straightforward. Simply pause the game, select Photo Mode from the menu, then use  to take a snap. It doesn’t matter what the picture looks like; you'll still get the trophy.

The perfect dodge is an interesting one in this game because it’s not immediately obvious whether you’ve been successful - and the game doesn’t actually tell you about perfect dodges at all.

The crux of this trophy is that you basically wait until the last second to hold a stick direction to dodge an attack. If you’re holding it one direction it won’t count, but if you press it at the last second, it’ll register as a perfect dodge. It took us a while to unlock this one, and didn’t get it until well into Chapter 7 (naturally), so if needs be, find an enemy early on in the game whose moves are telegraphed and not likely to one-tap you (and is close to a checkpoint), and then grind this out with them. If you die, whatever, reload the checkpoint and try again.

You can actually get this very easily, very early on in the game. After getting the shiv from Elias and making your way into the area over the bridge, you’ll encounter a QTE section with two inmates, which will net you the crowbar (of sorts). After that you’ll encounter a mutant, just keep whacking the right trigger and you should remove both arms and the trophy should unlock. You'll get this one without even trying... like we did.

Throughout Callisto there’s a load of environmental hazards that you can use to your advantage. The first real example of this is fairly early on in the game when you pick up the stun baton, there’ll be some spikes on the wall behind where the enemy comes out the grate. If you hit him a few times, he will fly backwards into the spikes.

You’ll likely get this trophy though towards the end of Chapter 2, 'Aftermath', after you’ve gone across the chasm on the gondola. In that room, when you’ve moved both batteries to the top walkway, you’ll be able to throw a ton of enemies into the contraption in the middle of the room. Best thing here is that it counts your progress if you die too, meaning you can grind them out here if you so wish. In truth, it’s a tricky section that will take a few tries, so you’ll probably get it naturally anyway.

You’ll unlock the GRP in Chapter 2, 'Aftermath', and not long after getting it, you’ll be able to get this trophy.

After you’ve made your way down the lift shaft, and come out in a maintenance area in the basement (where those dodgy head things latch onto you). At the far end of that room you’ll see a fan with a chest behind it. If you try to go round and get the chest an enemy will come out of the vents. Use your GRP on them and back up and fling them into the spikes on the wall. 

If you miss that, you’ll definitely get it towards the end of the chapter, after you’ve gone over the gondola. There’s a room where you’ll be tasked with powering up the SHU - throw one of the enemies into the gears or moving chains using the GRP as they grind into action.

Story-related, cannot miss.

This will be the first trophy you get in the game. In Chapter 1, 'Cargo', after making your way into the hold within the first few minutes of gaining control, you’ll come across a fire and the Outer Way boarding craft.

Story-related, cannot miss.

When you reach Callisto and are locked up early in Chapter 2, 'Outbreak', when things start going very wrong you’ll come across Elias in a cell who will give you a shiv. Trophy unlocked.

Story-related, cannot miss.

Towards the end of Chapter 3, 'Aftermath', when you reunite with Elias, you’ll unlock this trophy before going across on a gondola to another area.

Story-related, cannot miss.

During Chapter 4, 'Habitat', you’ll find yourself in the sewers in a large pipe. What then ensues is a set-piece involving a “pipeslide” that when you get to the end and climb the chain, this trophy will unlock.

Story-related, cannot miss.

About midway through Chapter 5, 'Lost', you’ll make your way to a snowcat and out the main gate. On the way to where you're going, you’ll return to the crashed ship and this trophy is yours.

Story-related, cannot miss.

At the end of Chapter 5, 'Lost', you’ll make your way up a lift and onto the flight deck where this trophy will unlock.

Story-related, cannot miss.

In Chapter 6, you’ll find yourself underground and will need to restore power to an old facility, so that you can get the hell out of dodge. To do that, you’ll need to turn on three relays in the Power Plant which you get to via the Power Tunnels - which you can get access to if you make your way to the tram (AKA the Transport Platforms) and grab the access card. Once you’ve activated the third relay, the trophy is yours.

Story-related, cannot miss.

After making your way out of Arcas and its outpost there and reaching the biodome underground, you’ll head left while Dani combs through the data. After you’ve passed through the first corridor, this trophy will unlock.

Story-related, cannot miss.

This trophy will unlock at the very beginning of Chapter 9, 'Tower', after the brief cutscene with a security bot.