If the key does not appear, maybe you missing a badge, I already made a tutorial on how to get them: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-6zcNjOnS7x4.html If still doesn't appear, get all the badges with Whitey's image (I did it again in an alt and it worked) PD: Theres no extra rewards in BEAR* and Lagoon secret place didnt changed.
for those wondering, if the key doesnt appear but you have all badges, check each badge just to make sure, but if you do have all of them, then the key will be hidden in the neon so it will be hard to see but just click/touch it and if the door doesnt open just keep trying to get the key until it opens.
because you need at least 8 each badge tokens and after inside the secret redroom from the first of obby then you will get the key in the secret place he did talk about it.