"BALLS OF STEEL": Survive an entire day while a Skeletron Prime head is chasing you and defeat it the next night, in hardcore
"Better than God": Survive two entire days and nights while one of each Skeletron Prime, Skeletron and Dungeon Guardian heads are following you, the next day defeat all the bosses that can be summoned in the day at the same time while still dodging the same heads, the next night defeat all the bosses that can be summoned at night at the same time while still dodging the heads, and the next day defeat the heads, all in hardcore, and all with no armor and a copper shortsword
"Extremely Unlucky": Fall down a floating island, but a monster was swimming in the pool you were trying to land in, the monster knocks you out of the pool before you are able to land in the water and you take fall damage and die
"Extremely Unlucky 2": Both a boss and you are below 20 HP, you miss with a projectile that deals more than 20 damage and the boss kills you
"Exremely Lucky": Same as above but this time the projectile doesn't miss and the boss dies
"Extremely Lucky 2": Fall down a floating island, and the fall damage takes you down to 1 HP, you survive just barely
"Extremely Unlucky 3": You're below 20 HP, you dodge a projectile but right after doing so you run into the monster that fired it and die
"Extremely Lucky 3": You're below 20 HP, a falling star comes down and kills the boss you were fighting