There are 96 achievement-style "Challenges" that you can complete for SP, which can be used to upgrade your skills. Some challenges can be completed in any mode, while others must be completed in specific modes. Below is a list of challenges, sorted by category, as well as their SP value and advice for completing the ones that aren't completely straightforward. Some of these will also unlock trophies.
These challenges can be attempted in either free roam or the Arenas, though some of them will only really work in specific Arenas just because certain enemies and items only show up in limited numbers in Story Mode, or not at all.
These can be completed anywhere.
- Dog Fight! (1): Defeat 25 Airborne Enemies while in the air This sounds tougher than it is. Enemies in stasis bubbles count as "airborne" and Fetch counts as "in the air" if she's even just hopping a little bit. Trap 25 enemies in stasis bubbles, jump, aim, and blast them.
- Make It Rain (1): Defeat 25 Grounded Enemies while in the air Just blast some enemies while floating down from a building or jumping.
- Duck Hunt (1): Defeat 25 Jumping Enemies You might have to specifically go after this one. It's easiest to complete in Free Roam. Attack an APC (because Akurans can't jump), dash up to the top of a building, and wait for the DUP soldiers to jump up after you. Shoot them while they're leaping.
You'll likely get most of these from normal play.
- Bullseye! (1): 25 Weakpoint Kills
- Sharpshooter (1): 50 Weakpoint Kills
- True Sniper (1): 100 Weakpoint Kills
- The Professional (1): 250 Weakpoint Kills Weakpoints are the most efficient way to take most enemies out so you'll likely get these naturally.
- Triple Takedown (3): Hit 3 weakpoints before the Focus Time expires
- Sting Like a Bee (3): Hit 5 weakpoints before Focus Time expires Each upgrade you buy for Laser Focus will make this a little easier. You'll probably need "Weak Point Recharge," which is a great skill to have anyway. If you want to be lame, you can hold L2 and press R3 to start Photo Mode, move the camera to move your aim while time is frozen, then press R3 again.
- Checkmate (1): Defeat a Bishop by hitting its Weakpoint
- Turncoat (3): Defeat 10 Enemies using Enslaved Enemies
- Minion Maker (3): Defeat 20 Enemies using Enslaved Enemies You'll unlock the "Enslave" skill after completing the story. Otherwise, there's nothing you really need to know for this one.
Melee attacks are much more useful in this game than in any of the previous games.
- Death From Above (1): 25 Comet Drop kills The Comet Drop is when you press Square while falling to do splash damage when you land. You'll do more damage and defeat more enemies at one time if you drop from as high as possible and start the attack as early in your jump as you can.
- Puncherod (1): 100 Melee Kills
- Sucker Punch(es) (1): 10 Consecutive Melee Kills
- KO Queen (1): 20 Consecutive Melee Kills Subduing a surrendering enemy counts as a melee kill, but accidentally punching a car until it explodes and kills enemies doesn't count, and will reset your counter. You'll have to defeat 20 consecutive enemies with melee attacks without any of them dying from explosions or any other way.
- Hulked Out (1): Defeat 50 Enemies with a Melee Finisher
You'll probably get these in the Arena.
- Event Horizon (1): Defeat 100 Enemies with a Neon Singularity
- Godlike (1): Defeat 20 Enemies with a single Neon Singularity All of the Arenas will eventually get insane if you play them long enough. That's where you'll probably complete this challenge. Attempt this after clearing the story, because you'll get the Supernova upgrade that will pull in more enemies from farther away.
Attempting these challenges is a good way to learn about the greatness that is the Stasis Blast.
- A Strong Gust (1): Blast 3 Enemies off a Platform
- Target Practice (1): 4 Stasis + Weakpoint Kills
- Accidents Happen (1): Blast 15 Enemies off a Platform
- Fetchdouken! (1): Blast 30 Enemies off a Platform Or a roof, or, whatever. Blast an enemy so he floats in the air above a long drop, then wait for him to drop to his death.
- Fish in a Barrel (3): 25 Stasis + Weakpoint Kills Shoot enemy weakpoints while they're in stasis bubbles.
- ULTRAAA! (3): 10 Stasis + Melee Finisher kills Use melee finishers on enemies that are floating in stasis bubbles.
These will all be easier after a few skill upgrades.
- Making an Impact (1): Defeat 3 Enemies with 1 Missile Salvo
- Boomshakalaka! (1): Defeat 5 Enemies with 1 Missile Salvo The missiles don't have to actually attach to 5 different enemies, as long as 5 get caught in one blast.
- Bada Bing... (1): Defeat 10 enemies in a row with Homing Missiles
- ...Bada Boom! (1): Defeat 20 enemies in a row with Homing Missiles Easier if you can hold more salvos at once. You might get this when trying to survive the higher numbered waves in the Survival Arenas.
Beat up Akurans and other generic thugs. They're basically all the same.
- Do Svidaniya (1): Defeat 50 Akurans
- Rat-A-Tat-Tat (1): Defeat 150 Thugs
You will definitely need to clear a lot of these in the Arena modes. Check the Enemies section of the guide to see which enemies are which, and strategies for dealing with them.
- Lights Out (3): Defeat 500 D.U.P. Enemies This covers all of the different types of DUP enemies. If you're fighting someone with concrete powers, you're fighting a DUP enemy.
- Expendable (1): Defeat 150 D.U.P. Pawns
- Night, Knight (1): Defeat 150 D.U.P. Knights
- Rookie Move (1): Defeat 25 D.U.P. Rooks
- Shield Breaker (1): Defeat 25 D.U.P. Bishops
- Super Defense Farce (1): Defeat 50 D.U.P. Super Pawns
- Brute Squad (1): Defeat 25 D.U.P. Super Rooks
These ones need to be completed in specific Arena modes or in Seattle.
These challenges must be completed in the story or free roam mode.
- Don't Shoot and Drive (5): Defeat 10 Drive-by Shootings When you see a car on your minimap, it's full of Akurans who will shoot at you. Destroy the car and defeat the Akurans to "defeat" the shooting. After a certain point in the story, these stop happening until after you complete the story, so you might want to take care of this as soon as you can.
- The Negotiator (5): Save 10 Hostages in Seattle Marked on your map by little "man" shaped markers. Defeat the enemies without killing the hostage. Once the Akurans leave Seattle, you won't be able to complete this challenge until the post-game free roam mode, so it's a good idea to hunt down 10 hostage situations as soon as possible.
- No That Armored (5): Defeat 10 D.U.P. APCs When the D.U.P shows up, you can find their armored vehicles driving around the streets. If they become aware of your presence, a few enemies will hop out and attack you. Defeat them to defeat the APC. You don't have to actually destroy the vehicle for it to count, but it helps.
Each Arena has five challenges for scoring a certain number of points. To unlock them all, you'll need at least 500,000 points in each of the five Arenas as either Fetch or Delsin. There are also a few challenges that can only be completed in Beta Arena Survival or Gamma Arena Survival.
- Alpha Rescue Bronze (2): Achieve a score of 10,000 points
- Alpha Rescue Silver (2): Achieve a score of 50,000 points
- Alpha Rescue Gold (2): Achieve a score of 100,000 points
- Alpha Rescue Platinum (2): Achieve a score of 250,000 points
- Alpha Rescue Diamond (2): Achieve a score of 500,000 points
- Alpha Survival Bronze (2): Achieve a score of 10,000 points
- Alpha Survival Silver (2): Achieve a score of 50,000 points
- Alpha Survival Gold (2): Achieve a score of 100,000 points
- Alpha Survival Platinum (2): Achieve a score of 250,000 points
- Alpha Survival Diamond (2): Achieve a score of 500,000 points
- Beta Survival Bronze (2): Achieve a score of 10,000 points
- Beta Survival Silver (2): Achieve a score of 50,000 points
- Beta Survival Gold (2): Achieve a score of 100,000 points
- Beta Survival Platinum (2): Achieve a score of 250,000 points
- Beta Survival Diamond (2): Achieve a score of 500,000 points
- Turret Whisperer (1): Overload 3 Turrets You'll get this in the story
- Turret Tickler (1): Overload 10 Turrets
- Turret Syndrome (1): Overload 25 Turrets Only three turrets appear in the story, so you'll have to get the majority of these in Beta Survival, the only other place they appear.
- Surfs Up (3): Surviva 20 Enemy Waves Must be consecutive, Beta Survival only.
- Cowabunga! (3): Survive 30 Enemy Waves Must be Consecutive, Beta Survival only. If you do this after you get Beta Survival Diamond, you can just focus on surviving instead of going for a high score. This means you can retreat when your health is low and not worry about your multiplier. One good way to do this is, once things get too tough, go to one of the highest platforms on the outermost walls and stand next to a neon source until you need it. Use your homing missiles to attack distant enemies and build up your emergency Singularity. Once you've used the neon source, move to another high platform and repeat. Enemies will follow you up there and you will have to fight them or retreat and fight from a distance. If enemies spawn right on the platform, you can take out an entire group with a fully upgraded Finisher. Hold on to that Singularity until things get desperate.
- Beta Rescue Bronze (4): Achieve a score of 10,000 points
- Beta Rescue Silver (4): Achieve a score of 50,000 points
- Beta Rescue Gold (4): Achieve a score of 100,000 points
- Beta Rescue Platinum (4): Achieve a score of 250,000 points
- Beta Rescue Diamond (4): Achieve a score of 500,000 points
- Gamma Survival Bronze (2): Achieve a score of 10,000 points
- Gamma Survival Silver (2): Achieve a score of 50,000 points
- Gamma Survival Gold (2): Achieve a score of 100,000 points
- Gamma Survival Platinum (2): Achieve a score of 250,000 points
- Gamma Survival Diamond (2): Achieve a score of 500,000 points
- Survivor (3): Survive 10 Enemy Waves Must be consecutive, Gamma Survival only.
- Gladiator (3): Survive 20 Enemy Waves Must be consecutive, Gamma Survival only.
- Champion (3): Survive 30 Enemy Waves Must be consecutive, Gamma Survival only. I suggest going for this after you've gotten Gamma Survival Diamond, so you don't have to worry about your multiplier and can retreat when your health gets low. Similar to "Cowabunga!" except there aren't really any particularly safe places to hide. Fully upgrade your Homing Missiles all the way to Heavy Detination and spam them like mad. Get to a neon source, unload your missiles (actually aim them but don't worry about them too much), then drain the neon and move to another source. Preferably one without any enemies right next to it. Even Wraiths, who are immune to regular neon bolts, will be destroyed by homing missiles. When a wave is about to enter, make sure you have some missiles handy, because they might spawn right next to you. Don't worry about wasting an entire salvo on one enemy. It's better to take him out quickly than concentrate on him with more difficult-to-use attacks and get ambused. Save your Singularity for emergencies. Keep in mind that those floating platforms are destructible, which can be a detriment to you or a blessing, depending on how you use them. Somewhere in the 20's, a lot of flying enemies will start spawning. Too many to spam homing missiles. Wait for an opening and use Laser Focus. Remember Fallen Angels and Night Terrors only take one hit. This should probably be the last Arena you master.
These can only be completed in Rescue arenas.
- Friend of the People (1): 3 Hostages Saved
- Guardian (1): 10 Hostages Saved
- Good Samaritan (1): 20 Hostages Saved
- Protect and Serve (1): 30 Hostages Saved
- Great Responsibility (3): 50 Hostages Saved These are all cumulative across multiple Rescue attempts, thankfully, because saving 50 hostages in one go would be ridiculous.
- Crisis Averted (3): Save 5 Hostages without letting them lose any health Enemies will fire on hostages after a certain amount of time or when they see you. Get to them quickly and rescue them with one bout of Laser Focus to keep the hostage in one piece.
- Overkill (3): Save a Hostage with a Neon Singularity If you built up a Singularity before starting the Arena, simply use it on the first hostage you see, when you're not likely to need it before you can build up another one. Singularities don't hurt hostages.
Combat Actions (Arena)
These challenges are listed with the rest of the combat actions when you look at the challenge list with an arena selected, but they are exclusive to the arenas.
- Light 'Em Up! (1): Defeat 50 Enemies with a Super Bolt You can collect the Super Bolt power up in Survival mode. These make your neon bolts super powerful, exactly like the bolts you use in the sniping story missions. Defeat 50 enemies with them for this challenge.
- Who Left These Here? (1): Defeat 50 Enemies with Detonated Ammo Dumps Sometimes boxes of ammo will spawn next to enemies, despite enemies never actually using them. They're volatile, so shoot them when there are enemies next to them to blow them up.
- Pull! (1): Defeat 5 Enemies with an Airborne Ammo Dump Use a Stasis Blast on an ammo crate and shoot it with enemies around it. The description says with "an" airborne ammo dump, but it's actually a running total so you don't have to kill 5 at once.
- Falling Down (1): Defeat 24 Enemies using Destructible Bridges
- Look Out Below (1): Defeat 40 Enemies using Destructible Bridges These appear in Beta Survival. If you see a strip of platform that looks like it's made of cobblestones, it can be destroyed with a heavy blast and will kill any enemies standing on it when it collapses.
Demons only appear in the Arenas and in one specific story mission.
The First Nightmare (1): Defeat 20 Demon Enemies
You Need Therapy (3): Defeat 250 Demon Enemies This is referring to all of the different types of demon enemy.
Unholy (1): Defeat 50 Fallen Angels
Exorcist (1): Defeat 50 Night Terrors
De-Summoner (1): Defeat 24 Summoner Enemies
That's Wraithist! (1): Defeat 50 Wraith Enemies
Arachnophobia (1): Defeat 100 Swarmer Enemies
These are more of a grind than anything.
- Millionaire (1): Earn a total of 1,000,000 points
- Top of the Class (1): Earn a total of 10,000,000 points These are referring to all of the points you've ever earned in the arena, not just your saved high scores. Anyone can unlock these with enough time and effort. You could get 100,000 points 100 times, if you wanted.