Prerelease:Undertale/Concept Art/Hotland

This is a sub-page of Prerelease:Undertale/Concept Art.

Areas

Various tiles and objects for Hotland, done by Kenju. Of note in the unused variety are: tubes, lava pipes, walls that resemble motherboards, various control pads, a ring of some kind of electronic device, and early conveyor belts. Kenju was also only given some errant concept art, which is why the mechanized elements are so heavily emphasized.

Of particular note is what Kenju describes as a "boiling water bath" in the top-right corner, which bears a striking resemblance to the Goner Maker background and the appearance of the Dark Fountains from Deltarune. Hmm...

Top view of the CORE from a distance, drawn by Merrigo. According to Toby, the second floor of Hotland was supposed to have this, but he just didn't put it in.

Temmie's concept art for Hotland, showing off some of the more mechanical elements that were eventually scrapped.

Temmie's sketch of what the tileset of Hotland should look like, which Kenj used as a base for the in-game version.

Despite Toby's confused commentary, this seems to be concept art of the giant ice cubes from Snowdin cooling down the CORE, although specifically in Hotland here.

Temmie's concept art for both floors of Alphys' lab. Notable points of interest include an actual bed, Undyne's spear next to the bed, and what seems to be a big indoor garage door.

According to Toby, Temmie was in school by the time they started work on Waterfall, so she only had time to sketch things that Toby or one of his other friends would have to sprite. This explains why Alphys' bed is seen only as an extremely easy-to-draw cube in-game, as Toby couldn't draw a bed.

Humorous placeholders for the Mew Mew Kissy Cutie posters in Alphys' lab. Toby apparently only put these in so the final artist, Gigi D.G., would see it while playtesting.

Toby's extremely crude placeholder for the MTT News Show, on which he laments why he even tries.

One of several attempts to figure out the front of the MTT Resort, by Toby.

Sketch by Toby of the inside of the MTT Resort. The pillars were removed because they would've obscured too much of the screen.

Yet more concepts of the MTT Resort's various rooms. In the PDF version of the art book, Toby explains a scenario that was cut from this location: while sleeping in your hotel room, a white round ball next to the bed would uncurl to reveal the Annoying Dog, who would then eat the snacks from the nearby snack bowl and scurry out. This was presumably removed as it isn't that humorous of a concept.

Crude concept art of Muffet's room by Toby, of course. She was supposed to have her own little "parlor" with a tea table and chairs; while the sprites for these still exist in the final game, they were ultimately unused.

Characters

Alphys

Toby's very first drawings of Alphys, who was originally a guy. Toby changed the gender (only by adding eyelashes) as he grew to dislike it.

Toby's first sprites of Alphys' original design.

Early concept art for Alphys, drawn by Temmie. The drawing on the left was based directly on her dialogue sprites, however was rejected as it was considered too smooth and round by Toby. The triangle on the right was drawn as Toby told her that Alphys "looks like a triangle".

Temmie's overworld sprites, some being placeholders, for Alphys (apparently drawn when she visited Toby at one point). Toby changed her eyes to make her look cuter.

Many, many early face sprites for Alphys, some with their final versions included as well. Along with this, there's a size comparison between her full battle sprite and Mettaton's old battle sprite, also seen below.

Mettaton

Toby's original drawing of Mettaton, who was inspired by the robot from the classic Wallace and Gromit short A Grand Day Out.

Concepts by Toby of Mettaton's battle sprite, especially his legs. Also a couple of... interesting side profile sketches.

Storyboard by Temmie of Mettaton's first appearance.

Very very early attempt at coming up with Mettaton EX's battle sprite, by Toby. While completely scrapped in this game, elements of this design would be reused in Deltarune for the decrepit NEO robot in Queen's basement, which in-universe is theorized to be designed by that universe's version of Mettaton.

Many different battle sprite ideas for Mettaton EX (and a few for regular Mettaton). The "trail of sparkling tears" was going to be used when EX gets hit, however this was replaced with him enjoying it instead. The angle of the sprite in the top-right, alongside the basis of the fights against regular Mettaton (not being able to defeat a giant robot by normal means), was directly inspired by R7308 from Mother a.k.a. EarthBound Beginnings, another one of Toby's main inspirations. The angle was scrapped, as it would've looked weird next to Alphys' regular perspective.

Unused idea (drawn by Toby) for EX's battle, which was apparently programmed in at some point, but removed as the transition apparently didn't look good.

Various stages of finalizing EX's appearance, by Toby. The bottom-middle design has hands and legs by Temmie.

A couple of unused arm poses for Mettaton's first battle.

Bratty & Catty

Early designs and faces for Bratty and Catty. IPGD (ipunchgaydeer) redid the designs, and Toby touched up the eyes for both.

Burgerpants

The very first concept art for Burgerpants, who apparently started out as a PaRappa the Rapper-inspired character but went "wrong".

yeah??? 
i'll fucking
do it

Uncensored concept art for Burgerpants with some... colorful commentary. According to Toby, Burgerpants is the only character whose final design matches the concept art 1:1.

(Source: @tobyfox)

Royal Guards

Various early versions of the Royal Guards, including unused Guards. RG 02, the dragon, has the most differences, with his helmet looking much more intimidating (or melted?) in the concept art. Art in the bottom right also implies RG 01, the rabbit, may have gone chestplate-less at one point as well. Or it was just a joke drawing. Also includes an unused Amalgamate form of all four named ASURA, which raises... a lot of questions.

Heats Flamesman

Heats Flamesman concept art, along with their final sprites. Apparently just walking by them would've shown that you supposedly knew their name, judging by the notes.

Muffet

Kickstarter backer Michelle Fus's original uncolored and colored drawings of their character, Muffet. Toby states that he basically traced the design in-game for her battle sprite.

River Person

The riverperson was originally going to randomly wear this flowery muumuu, but Toby didn't implement this.

Scared Donut Guy

A sheet featuring the Scared Donut Guy at Muffet's bakery, his face looking decidedly more scared here.

Life's a process.

Vulkin

A sheet featuring Vulkin, with few, if any, differences to its final design.