The Cryptic Challenge

Solve all three levels to find the 4-digit code and unlock the final challenge.

Level 1: Audio Mystery

Level 2: AI Babble

D̵̖̖̥̮̲̣̄̇͋̃͗̌̀͆̌͒͜=̴̭̝͕̦̺̗̽̎̒͛̌͐̚0̵̣̺̲͕͂͛̂̌̔n̸̝̪͓̰̘̭̒͊̌͂̌̏̋ ̶̻̽̐̉̑̈́̊̃̔͗̂2̴̨̮̲̮̥͖̫̞͊̔͐̀͆͋̒i̸̱̱͕̰̻̤̍d̶̡͉̘̟͖͚͙̞̻͚̞̎̀͒g̴̨̀̍̓̊̔̾̕į̴̗͓̗̦͚͙̞͓͌̀͗̿̊́̓̓t̵̨̟͇̣͎̯͚̘̊̈̀͑̽͂̓̒̔͌͜ ̶̤̝͌̿́̃̔̽̔̂͝͝ ̴̱̣̄̂̀͗̓̔̒̎͌̚

Level 3: Encoded Message

M3JkIGRpZ2l0ID0gMS4gNHRoIGRpZ2l0ID0gMw==

Enter the 4-Digit Code