By dropping a Guide Voodoo Doll in lava within hell. The dolls are dropped by Voodoo Demons, also found in hell.
What you need is the guide doll(correct me if mistaken) which you throw into the lava(Starts appearing once you dig deep enough.) and the Wall of Flesh(WoF) us summoned.
In Terraria your profile does not get get deleted when you die after beating the Wall of Flesh. You might be thinking about 'hardcore' difficulty, which features permadeath, this is not the same as Hardmode.
The Mimic can be found in the Underground Corruption which only appears after you have defeated the Wall of Flesh. (They have a Wiki for Terraria so you don't have to wait 2 weeks for someone to answer your question.)
Star cannon and more stuff stronger than it
You...1. Didn't drop the guide vodoo doll into lava.2. Didn't drop the doll into the underworld's lava.3. Have a bug.Also note that if you drop a Guide Voodoo Doll in lavso you cannot see the lava it lands in, the WoF may summon without eyes, mouth and The Hungry will be OP. Any Player or players behind it will be killed as if they were using a Magic Mirror.You may find other bugs at the Terraria wikia.
Left click.
To get the hallow biome you must unlock hardmode and it will automatically spawn somewhere in your map. To unlock hardmode you must kill the WALL OF FLESH. To d this you must go to hell, kill a guide voodoo demon and drop it into lava. I recommend using a star cannon and full molten armor.
You can summon the Slime king where ever you want when ever you want. To do this you must have 20 gel (90 on a console) and a golden crown and make a king slime summoning item at a demon alter.
fire
Terraria happened in 2011.
Search "Terraria invedit" on youtube.
Just Google Terraria servers and copy the ip address into the multiplayer slot on terraria.
If you have Terraria on Steam it updates itself once an update is available.