If Brainfuck wasn't enough for you, get used to programming with tiny diacritics that cram together in the width of a single character.
Nikud is an esoteric stack-based programming language based solely on the Hebrew Niqqud diacritics. All other characters are ignored. Try it Online
The following code (336 characters, 672 bytes) outputs Hello, World!
ֱֱֱֱֱֱֱֱֱֱֱֱֱֱֱֱֱֱֱֱֱֱֱֱֱֱֱֱֱֱֱֱֱֱֱֱֱֱֱֱֱֱֱֱֱֱֱֱֱֱֱֱֱֱֱֱֱֱֱֱֱֱֱֱֱֱֱֱֱֱֲֳֳֳֳֳֳֳֳֳֳֳֳֳֶֶֶֶֶֶֶֶֶֶֶֶֶֶֶֶֶֶֶֶֶֶֶֶֶֶֶֶֶֶֶֶֶֶֶֶֶֶֶֶֶֶֶֶֶֶֶֶֶֶֶֶֶֶֶֶֶֶֶֶֶֶֶֶֶֶֶֶֶֶֶֶֶֶֶֶֶֶֶֶֶֶֶֶֶֶֶֶֶֶֶֶֶֶֶֶֶַַַַַַַַַַַַַַַַַַַַַַַַַַַַַַַַַַַַַַַַַַַַַַַַַַַַַַַַַַַַַַַַַַַַַַַַַַַַַַַַַַַַָָָָָָָָָָָָָָָָָָָָָָָָָָָָָָָָָָָָָָָָָָָָָָָָָָָָָָָָָָָָָָָָָָָָָָָ
or in a slightly more verbose way, !ֱֱֱֶֶֶֶַַָָָָdֱֱֶֶֶֶַַָָָlֱֱֱֱֶֶֶֶֶֶַַַַָָָָָrֱֱֱֱֱֱֱֱֶֶֶֶֶֶֶַַַַַַַַַָָָָָoֱֱֱֱֱֶֶֶֶֶֶֶַַַַַַָָָָָWֱֱֱֱֲֶֶֶֶֶֶֶֶַַַַַַַַָָָָ ֱֱֶֶֶֶַָָָָ,ֱֱֱֱֱֱֱֱֱֱֶֶֶֶֶֶֶֶֶֶֶֶֶַַַַַַַַַַַַַָָָָָָָָָoֱֱֱֱֱֶֶֶֶֶֶֶַַַַַַָָָָָlֱֱֱֱֶֶֶֶֶֶַַַַָָָָָlֱֱֱֱֶֶֶֶֶֶַַַַָָָָָeֱֱֱֶֶֶֶַַַָָָHֱֱֱֱֱֱֱֱֱֱֱֱֱֱֱֱֳֳֳֳֳֳֳֳֳֳֳֳֳֶֶֶֶֶֶֶֶֶֶֶֶֶֶֶֶֶֶֶֶֶַַַַַַַַַַַַַַַַַַַַַַָָָָָָָָָָָָָָ outputs the same thing. Remember, non-Niqqud characters are ignored.
The code ְֱֱֱֱֱֱֱֱֱֱֱֱֲֳִִֵֶֶֶֶֶֶֶֶֶֶֶֶֶֶֶֶַַַַַַַַַָָָָָָָָָָָָֺֺֺֹֻֻ (122 bytes) outputs 2 3 5 8 13 21 34, and can be changed to support arbitrarely large Fibonnaci numbers.
The code ְְְְְְְְְְְְְְְְְְֱֱֱֱֱֱֱֱֱֱֱֱֱֱֱֱֱֱֱֱֱֱֱֱֲֲִִִִֵֶֶֶֶֶֶֶֶֶֶֶֶֶֶֶֶֶֶַַַַַַַַַַַַַַַַַַַַַַַָֹֺֺֹֻֻּ (198 bytes) takes a number as input and outputs its factorial.
(DROP) Pops the top value of the stack and discards it.
(PUSH 1) Pushes 1 to the top of the stack
(PUSH -1) Pushes -1 to the top of the stack
Pops the top of the stack and prints the unicode character with that charcode
(GOTO) Pops the top of the stack and performs a GOTO to the character at that position (Non-Niqqud characters are ignored)
Pops the top of the stack and prints it as a number
(DUP) Duplicated the top of the stack.
(ADD) Pops the two elements at the top of the stack, adds them, and returns the result to the stack
(MULT) Pops the two elements at the top of the stack, Multiplies them, and returns the result to the stack
(SKIP NON-ZERO) Pops the top of the stack. If that element is non-zero, the next operator will be skipped.
(SWAP) Swaps the two items at the top of the stack
(ROT) Moves the third-to-last item to the top of the stack
Reads a number from stdin and puts it onto the stack.
Reads one character from stdin as charcode.