The peculiarity of Malbolge is that is has been conceived to be the worst possible programming language. It takes constructs from Intercal and Brainfuck, but adds a lot painstaking constructs of its own.
The difficulty of programming in Malbolge is easily understood when one realizes that the first Malbolge program ever written came to birth only 2 years after the invention of the language! Moreover, it has not been really written by a human being : instead,it has been generated by a genetic algorithm implemented in Perl.
Hello World in Malbolge
This Malbolge program displays "hello world".
(=<`$9]7<5YXz7wT.3,+O/o'K%$H"'~D|#z@b=`{^Lx8%$Xmrkpohm-kNi;gsedcba`_^]\[ZYXWVUTSRQPONMLKJIHGFEDCBA@?>=<;:9876543s+O<oLm
wikipedia.org dumped 2003-03-17 with terodump