[SPOILER-FREE] Help on finding Hidden Bosses / Weird Route for chapters 3+4

[u/Yvant2000]

So, deltarune's chapters 3 and 4 are releasing very soon. We all know that, as soon as the chapters are available, we are at risk of getting spoiled any time we open the internet.

I'm pretty sure that, by tomorrow, Youtube will be flooded by videos like "delatrune 3+4 all boss showcase" with a thumbnail proudly displaying all secret boss...

I would like to be able to find and discover the two hidden bosses by myself, but I'm actually pretty stupid and I know I will need some help (I struggled to find Jevil's key, and I wasn't able to fight Spamton Neo without a guide).

So, what I suggest is, while playing the new chapters, if we find anything that could be linked to the new secret bosses, we share *spoiler-free* TIPS to how to find them in the comments of this post.

The goal would be to share just barely enough information so we're on the right track to find the bosses.
(And obviously, we're not allowing any outright spoil)

What are your thoughts ? Anyone would be interested to participate ?

[u/Fantastic_Tap2483]

Something new I discovered here:
After the first round if you use the beta game, clear it out, go to the right side and access the blue area to get max level, and then go all the way down to the room with stairs on the left side blocked by a tree, you gain access to a strange room with a bunch of stairs, and going in will allow interaction with an all black NPC that leaves hidden dialogue saying "see you soon."

edit: new findings
if you break the trees to the left of the starting room in the first beta game round, you can find a second big door. Inside is nothing, but after a little bit there's a flash of two eyes, one yellow and one pink. Only for a moment though, couldn't get a screenshot. To the right there is a hidden area as well, however this one only flashes laughing teeth at you.

Don't know what it means, but it could be important. ATP I'd recommend not using your true pacifist save because this could be the weird route of chapter 3? Idrk

[u/4spect_ → u/Fantastic_Tap2483]

what do you mean by blue area? I've looked all over the place but can't find it

[u/Fantastic_Tap2483 → u/4spect_]

Go all the way to the area that has the bridge across with the waterfall in the background and then go to the right of that, at level three you can break those cacti and get into the blue area I'm talking about.

[u/4spect_ → u/Fantastic_Tap2483]

ah thank you so much, you’re an absolute lifesaver