Hera: The Sword of Rhin/Enemies

In several occasions, guards block your progress. Unfortunately, they are extremely tough opponents. Therefore, alternate methods to deal with them must be found.

In Castle Thierry
A guard prevents you from talking to the Princess, and therefore from obtaining the next key item (the force suit).

Use the ship and "grind enemies" until you purchased the best available armor (in Rara Avis) and a large amount of health points (e.g. 3000 HP) from the healer in Castle Lunca (she has the best price).

Then, enter castle Thierry, attack the "bodyguard", step back, move around, talk to the princess. After you obtained the key item, run from the castle. Some guards could block you at the exit from the royal rooms: make a U-turn, let them come in, make another U-turn and leave with them in queue. When the gate guards arrive, turn back and run around the central fountain, until you see an opening to escape the castle.

In Helwan
A guard prevents you from talking to the prisoners in the jail.

Collect another boat key in the ruins of Irray, go back to Helwan and take another ship. Position the ship straight north from the jail entrance. Go south, hit the guard, run back to the ship and open fire on the guards until they all are defeated. Now you can freely talk to the prisoners.

In Paranor
A man prevents you from accessing the sub-key.

If you attack the man, all guards in Paranor will activate. If you let him follow you in the seashell spiral, he will block your exit, and you will have to attack him anyway.

Instead, let the man follow you to the force field to the east, cross it, and he will stay behind. Re-enter from the southern force field, and the man will be in a corner, unable to reach you. Take the sub-key, and leave in peace.

In Castle Venipanor
Guards prevent you from talking to the prisoners in the west wing, and therefore from obtaining the next key item (the cross).

Use the submarine and "grind enemies" until you purchased the best available armor (in Castle Venipanor), raised your agility to 60 and purchased the best available weapon (in Castle Lunca). You will also need a sufficient amount of health points, normal keys (2 to 8) and jail keys (2 to 4).

In Castle Venipanor, beat the jail guard, pass the force field, beat or get past the two guards in the jail, talk to the two prisoners. Then, open the "normal" door in the south-east cell, defeat two guards in the corridor, explore the rest and meet two characters.

There is one chest in the east wing of the castle, but it is just a regular chest holding 1 to 19 Gold. It is protected by two more guards and a door: the chest contents are definitely insufficient to pay back the loss of health and the key.