Stuff like that is what was used to implement zalgo text

Ę̮̱͔͓ͯ͗ͫ̌̏ͫ͌́x̘̤͚̰̫̫̗̤̱̒̓ͨͯ͑̓ͥͫ̕å̰͚̓͒ͫm̛̤͕̫̳̺̩̄̓ͨͥ͜ͅp̰͉͗ͤl̵̖̗̫͍͓͋̍̐͌̐̒e̡̧͔̮̿͒͋̈́͡ ̸͉͔͗͐̍ͩͫ̀ͭz̨͎̱̟̘̓ä́͊̉̾͜͏̺̲̘l̛̥͇͖̹̻̜̈̀̀g̴̗̻͚͙̭͍̩̔̉̆ͦ͌͘oͬ̾͑̉̋҉̢͙̹̹̺̺ ̷̢͖̲͇̺̪̹̙̺̘͐̄ͬ̍͆t̶͔̣̜̟͌̀ͪ̅ͧ̒̒ͫ̚ȅ̠̪̻̄ͫ̋͝xͭ͆͝͏̮͔̜t̟̬̦̣̟͉͈̞̝ͣͫ͞,̡̼̭̘̙̜ͧ̆̀̔ͮ́ͯͯ ̢̮͎̦͙͇ͪͪ̈͌ͬ̄̓̐͞ḷ̹̺̙̜̇̉́͡o̢̻̪̠̬̍͐̉ͮͥ̑͊ͪt̢̘̬͓͕̬́ͪ̽́s̢̜̠̬̘͖̠͕ͫ͗̾͋͒̃͛̚͞ͅ ̝̣̥̳͇͎̭̾̔̀̀̔̽̕o͇ͮ̋̅͋͆̈́̔͗͟f̙̙͕̮̈ͪͯ̿̈͠ ̯͎̺͎̺̃̀͟͟d͍͍̺͂̂i̪̩̙̭̝͖ͥ͂̂̈̒̎r̥̜̃̏̃͋̓ͥ̃̉̄͘͢t̳̦̬͆͂ͬͧ̏ͬ̓y̵̮̗̟ͩ̃̾͐́ͩ ̣͍̘͈̫͓̊ͤ̚͡͝cͥͭ͐̎͆͘̕҉̫̞h̴̢̫̘͉̖ͪͩ̓ͪͯ̑͑̓̎͝a̧̢̖͔̗̬̘̯̟ͪ̐͌̍͂̊r̷̝͓̬͆̄̽̓̋ͬ̈̔͝͠ā̗͑ͬ̀c͒̎͌̔͛͘҉̘͖͖̖̯̖͖͙ṱ̶͇͚͎ͯ͋͢͝eͦ̽͆͏̟̭̠r̙̖͙̳̾ͯ̈̕ṣ͙̈͆̔͗̉ͥ̋̔̕