to make it safe, start off by detonating the two proximity mines marked on the screen above.
You of course have to use the Disruptor in both cases.
After reaching the spot showed on the screen#2, turn slightly to the left and afterwards right.
After reaching the corner of the labyrinth of course turn right.
Go pass the recently destroyed mine and turn right once again#1.
Afterwards safely leave the minefield following the same way.
Luckily in case you make a mistake, the explosion will only hurt Batman and not kill him.
the hole#2.
For that you will use the electromagnet and the pressure plate.
Take out the Remote Electrical Charge and shoot at the magnet#2.
Sending the charge will cause the electromagnet to attract the sphere#1.
Send another charge towards the magnet#2.
Fire a charge at the magnet for the last time.
Quickly run to the sphere before the magnet stops working and take out the Trophy#2.
Head north and find a high vantage point on the roof of the GCPD building#1 #2.
Turn south so that you see the spot you have to fly to.
Instead, use the Dive Bomb#1by pressing the right trigger.
Therefore you will be able to fly above the pressure plates.
Head to the main room and look for a Trophy visible behind one of the windows#2.
Grab it using the Batclaw.
TROPHY 24
Gadgets used: Line Launcher
Find the small balcony south-east of the Trophy#1.
Note that approaching it will cause the grate to lower#2.
Go south, find another pressure plate#1 #2and of course stand on it.
Turn north (towards the Trophy)#1and equip the Line Launcher.
Shoot at the wooden wall in the distance#2.
Start riding the line and Batman will automatically break through wooden walls#1.
Eventually you should land nearby the place where the Trophy is#2.
TROPHY 25
Search for the pressure plate nearby the Trophy cage and stand on it#1.
TROPHY 26
The puzzle behind the Trophy is very easy.
Run through the three pressure plates before the cage#1and it should open as a result#2.

On one of the balconies you will come across a Trophy#2.
TROPHY 28
Examine the upper balconies in the GCPD building to find a ventilation shaft entrance#1.
Use it and collect the Trophy hidden there#2.
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