Nice job! I know its pretty generic of a comment but its really nice work!

While the amount of detail and screeen-scale of it causes this to not particularly feel undertale-ish, it stands on it's own as pretty stellar

Yeah, that's why I didn't tag it as such. I think it's more enjoyment of working with the black and white limitations.
I will be more limited in size when I do this with Marx, Marx Soul and 0-2~

the intricacies of this are rather impressive o3o

Thank you, I tried to match the original as best I could.

Damn man, you've been busy!

Your ability to make such sprites/backgrounds/etc is really impressive!

Was working on this off and on since this morning. =P

And thank you. =3 I've wanted to do something with Heart of Nova, but I can't improve upon what HAL already made. So I did this. =P

Oh woooooow, this is really impressive! As someone who played Superstar to death as a kid, and its remake on the DS, this is an amazing piece--you squeezed in a ton of detail with this, and it's really impressive. owo Whether its sized and detailed exactly in Undertale's style or not, this is SO amazing, and inspiring, too! I totally rate this 9.5 stars out of ten, it's amazing~ ^w^

As much as I like Superstar, Triple Deluxe exceeded it in my opinion.
But yeah, I tried to make this look as good as I could. And if it was half the size it WOULD fit into the Undertale screen size limit. I just double it as that is what the sprites are in the Undertal battle screens.

But my thoughts are like this, if a boss can "crash" your game, then a boss can resize the window.

Yeah, Triple Deluxe was really amazing--personally, Super Star Ultra is still my fave, but Triple Deluxe isn't far behind by any means at all. It executed everything so wonderfully, it left me wishing the game was a little longer. XD
But hey, no worries about the size limit as long as you're having fun, you know? You've obviously done an awesome job here, and seriously, I'm giving you major props for the level of detail and everything~ 8D

But y'know what? That would honestly be neat, and, possibly even humorous if executed a certain way, and I'd love to see that. A boss just decides that the window's "too small", and widens it so it fits just right. X3

I think my thing with Superstar is since it's divided into "games" it feels like a bunch of dijointed things. I love Superstar, but Triple Deluxe just has that right feeling of progression. And caps off with Sectonia~ And then the hardest challenge in Kirby history, The True Arena. Beating that with something that DOESN'T have invincibility frames is so satisfying, both times I only used Spark! No Spear, no Stone, just Spark.
I do enjoy making these. =3 I might do Marx, Marx soul, and my 2nd favorite Kirby boss, 0-2.

I know, you just go in, they don't fit in the screen, and make it bigger.

I'm just plain amazed. To think you did this with one of the most detailed backgrounds in SNES history. :0

Yeah, there's a reason I haven't made a 2X size verion of Heart of Nova, I don't think I can improve upon what HAL made.

Well you certainly did a great job of this, so that's something. :)

as soon as i saw this last night, i immediately remembered the music from that. still one of my top 10 games of all time, you did exceptionally well in the detail <3

That music is pretty memorable. And thank you. =3

Man, can you imagine this in motion like the original boss fight? That'd be something.

That would be quite impressive. The main core unit spinning, the heart spinning, and the "pillars" going across the screen and moving as they should.