_        _______           _______  _          ______  
( \      (  ____ \|\     /|(  ____ \( \        / ___  \ 
| (      | (    \/| )   ( || (    \/| (        \/   \  \
| |      | (__    | |   | || (__    | |           ___) /
| |      |  __)   ( (   ) )|  __)   | |          (___ ( 
| |      | (       \ \_/ / | (      | |              ) \
| (____/\| (____/\  \   /  | (____/\| (____/\  /\___/  /
(_______/(_______/   \_/   (_______/(_______/  \______/

Everything should be clear now ;)
Still need a hint?

Hint 4
Use head-object command to check object's metadata.

{
    "AcceptRanges": "bytes",
    "LastModified": "2020-04-19T15:52:32+00:00",
    "ContentLength": 230,
    "ETag": "\"xxx\"",
    "ContentType": "binary/octet-stream",
    "Metadata": {
        "x-amz-meta-secret-code": "xxx"
    }
}

You are equipped to get objects' metadata.


No hints anymore. :) Get the secret code, and use
https://s3game-level4-<THE CODE>.s3.us-east-2.amazonaws.com/level4.html to get the next Level...