BioShock 2

This secret achievement is for beating all the bonus Protector Trials, as mentioned above by XXXICenturyMatt.

The bonus trials are unlocked once all the regular trials have been completed. There are 6 bonus trials (1 for each level), and you get to use all your guns and plasmids.

My recommended strategy for each level is to get the money to buy mini-turrets as quickly as you can and place 4 around the little sister. This will keep her well protected. I used the Insect Swarm plasmid constantly, which really slowed down the splicers. With those defenses and your favorite gun, protecting the sister (and even getting an A/A+ rank) should be no problem.

Use whatever weapon/plasmid/tonic combo works best for you!

** Reminder from Fire Hawk D : You do get to choose which tonics you want to use, and all of your plasmids are at level 3. **

go to gene bank set all drill related tonics on plus which others u want and set summon elenor plasmid as this will be ur main weapon then place traps around the little sister start to gather and then use summon elenor she will kill all off them with ease..
A+ every time...

Two words: Summon Eleanor!

Equip Natural Camouflage. Set 12 trap rivets in a circle around the body, and lay the mini-turret. Then just sit back in some corner and watch Eleanor Lamb wreck shop on the enemies.

Refresh the perimeter around the body with cyclone traps if necessary. You probably won't even need to attack any splicers directly if you don't feel like it, but of course feel free to help Eleanor out with whatever weapons or plasmids you like.

Guardian Angel - Completed all bonus Protector Trials

Shouldn't be a problem if you've completed all the regular trials, just keep playing. When you get to the bonus trials, remember to check out the Gene Bank in each level to choose your plasmids and tonics.

Once you complete all of the original challenges you unlock bonus challenges. The only difference with these is that ALL guns, ALL plasmids are at your arsenal. To make things better you get a wide variety of perks/tonics and all of your guns and plasmids are fully upgraded. These are not hard at all, they are more fun then hard. Very simple.

Note: If you are having trouble with the "No Guns" challenge to get the bonus challenges, just pay attention to your perks/tonics. If you sit in the water your health and plasmids will regenerate. Problem solved.

Good Luck!

It's really easy to score an A+ on each bonus stage, just using the final plasmid, security command 3 and insect swarm 3 - the splicers won't come near you or your little one. but for this achievement you just have to complete them, the ranking doesn't matter.

so i recommend trying plasmids, tonics and upgraded weapons you missed/didn't use in the main game and just having fun.

you can maximize the drill with tonics like drill specialist and drill vampire or just try where's the best place to set traps.

have fun!

This is one achievement where you can kick back and have a little fun. Because you get every weapon, Plasmid and Tonic for these bonus Trials, you can really ramp up the Splicer devastation. Specifically because of one Plasmid; Summon Eleanor.

Here's a general guide to how I shredded Splicers on 6 different maps:

Traps:
- Trap Spear at most common enemy entrances
- Proximity Mines near same entrances, but closer to Little Sister
- Trap Rivets on common enemy paths
- Mini-Turret near your Little Sister at good vantage point

Weapon:
- Shotgun, Solid Slug (also, if you have a good set of headphones with bass amplification, it sounds absolutely delicious)

Plasmids:
- Summon Eleanor
- Electro-Bolt (Stun-lock enemies to gain ground on them or for Eleanor to stomp them)

Gene-Tonics: (Keep in mind, you need to go to the Gene-Bank in-game to change these, and you need to do it every map)
- Armoured Shell (Lowers Damage)
- Armoured Shell 2( Lowers Damage)
- Fountain of Youth (Health+Eve when standing in water)
- Thrifty Hacker (Lowers vending prices on hacked machines)
- Eve Saver (Plasmids cost less Eve)
- Eve Saver 2 (Plasmids cost less Eve)
- Electrical Storm (Deal Electrical damage when hit)
- Fire Storm (Deal Fire damage when hit)
- Ice Storm (Deal Ice damage when hit)
- Elemental Storm (Deal Electrical, Fire or Ice damage when hit)
- Sports Boost (Movement Speed)
- Vending Expert (Lowers Vending Price)
- Vending Expert 2 (Lowers Vending Price)
- Medical Expert (Extra Health Kit)
- Eve Expert (Extra Eve Hypo)
- Head Hunter (Increase headshot damage)
- Eve Link (Health Kits give Eve)
- Elemental Vampire (Level 3 Plasmids siphon enemy health)

HACK ALL VENDING MACHINES ('Circus of Values' and 'El Ammo Bandito!') AND HEALTH STATIONS.

Once you've got all of that sorted, swap to your Shotgun, drop your Little Sister off to do her stabby thing and use the Summon Eleanor Plasmid. Once she and your traps have made a few kills (and maybe you, too, if Eleanor got sloppy) grab yourself some more Solid Slugs and fill up on Health Kits and Eve Hypos. From there, do whatever you feel like, because you're invincible.

Enjoy!