”<8@\|DḶ|\6þ # Displays the string "hello¤world".
”<8@\|DḶ|\6 # Decompresses to the array ["h", "e", "l", "l", "o", "¤", "w", "o", "r", "l", "d"] and pushes it on top of the stack.
þ # Pushes a copy of the array to the screen which since is an array is done by reference.
ı # Makes the array on the top of the stack the new stack.
HḶƥɲSḍsɲS # Loops eleven times creating the animation.
H # Pushes the string "H" on to the top of the stack.
Ḷ # Consumes the "H" that gets evaluated as a base 98 number which comes out to eleven.
ƥ # Move the stack pointer up one.
ɲS # Switch the case of the top of the stack which will show up on the screen because the array is done by reference.
ḍs # Delay for one second.
ɲS # Switch the case back.
# Implicit end of the loop.
Animate the text in your terminal
22 bytes
My answer
Try it:)