Trombone Champ VR gets Undertale + Deltarune DLC — meme boss themes meet unhinged brass

Undertale meets the world’s funniest brass instrument – in VR

This caught my attention because Trombone Champ’s whole joke is that earnest musical ambition collides with absolute chaos – and Undertale/Deltarune’s most beloved tracks thrive on that same “you can do anything” energy. Flat2VR Studios and Holy Wow just dropped the first DLC for Trombone Champ: Unflattened, the UNDERTALE + DELTARUNE Song Pack, and it’s live today on Meta Quest, PlayStation VR2, and Steam VR for $7.99. Six tracks, 18 challenges, and a pixel-styled trombone with optional 8-bit SFX – on paper, that’s a tight little shot of fan-service with teeth.

Key takeaways

• $7.99 for six songs is solid VR rhythm DLC value, especially with bespoke VR slide charts and reactive environments.
• The lineup is pure fan catnip: Megalovania, Hopes and Dreams, Battle Against a True Hero, BIG SHOT, Black Knife, and The World Revolving.
• 18 new challenges suggest real replay depth beyond sight-reading the memes.
• As always with Trombone Champ VR, calibration and latency will make or break your runs — expect to tweak before tackling boss-level BPM.

Breaking down the pack: six bangers, one unstable trombone

Undertale’s trio does exactly what you think it will. Megalovania is the litmus test for any rhythm game — demanding accuracy during rapid slides and micro-pauses that expose your intonation instantly. Hopes and Dreams ~ SAVE the World layers motifs and key changes in a way that should feel tailor-made for VR’s physical slide control. Battle Against a True Hero is the stamina check; if you don’t manage breathing and arm travel, your tone (and dignity) will collapse mid-phrase.

On the Deltarune side, BIG SHOT is pure Spamton energy — tempo pivots and swagger that punish sloppy timing. The World Revolving has that manic jester syncopation where your slide wants to jump ahead of the beat; it’ll test whether you can lock to downbeats when the melody begs you to overcorrect. Black Knife is the wildcard: icy atmosphere with tricky phrasing that’ll tempt you into over-sliding. In short, this set isn’t just meme fodder; it’s a legit technical workout that plays to VR’s strengths.

Flat2VR says each track comes with reactive environments and “bespoke slide patterns.” That matters. The base game’s best charts lean into long, satisfying glissandi and comedic swoops, not just note soup. If these six adopt that philosophy — designing around arm reach, controller dead zones, and visual readability — they’ll land closer to “instrument gag with surprising musicality” than “party game you drop after ten minutes.” The pixel-themed trombone with optional 8-bit SFX is the right kind of cosmetic: silly, audible, and thematically on brand with Toby Fox’s chiptune roots.

Value check and the VR rhythm landscape

How does $7.99 stack up? Beat Saber often runs $1.99 per track a la carte and $9.99-$12.99 for 5-10-song packs. Synth Riders and Pistol Whip sit in a similar ballpark. At roughly $1.33 per track, Trombone Champ’s pack is priced to move, especially if the 18 challenges add modifiers and goals worth grinding — think accuracy thresholds, no-miss runs, or goofy rule sets that unlock cosmetics. If you’re on PS VR2 or standalone Quest, official DLC like this matters more because you can’t rely on the PC mod scene to feed you custom charts.

The bigger picture: VR rhythm games live or die on regular, high-quality music drops. Trombone Champ: Unflattened arriving with a beloved indie OST shows Flat2VR and Holy Wow understand how to feed the beast without sanding down the game’s personality. Plenty of VR ports lose what made the original sing; TrombChamp VR leans harder into the joke by making you physically commit to every honk and catastrophe. Undertale’s boss themes are perfect antagonists for that vibe.

What gamers need to know before buying

First, calibration is king. Trombone Champ in VR lives or dies on how your slide movement maps to pitch. If your timing feels off on PS VR2 or Quest, don’t try to brute-force Megalovania; fix your settings and then dive in. Second, expect a cardio element. Battle Against a True Hero and Hopes and Dreams will torch your forearm if you lock your elbow — keep it loose, use shoulder motion, and pace your breath. Third, this DLC requires the base game. If you bounced off Unflattened’s feel in the tutorial, six great songs won’t change that core interaction for you.

As for content density, six songs is lean but focused. The 18 challenges need to do heavy lifting to keep the pack in rotation after the first weekend. If those challenges remix environments, enforce alternate slide routes, or layer in comedic “judgmental UI” touches hinted at in the notes, that’s the kind of personality that separates Trombone Champ from sterile note highways.

Healthy skepticism and what we’ll watch

My big question is mapping quality across platforms. Quest tracking quirks and PS VR2’s sense controller positioning can nudge pitch off by just enough to turn precise lines into mush. If Flat2VR nailed per-platform tuning, these songs will feel expressive rather than fussy. I’m also curious whether “reactive environments” stay readable during the wildest sections; visual noise is a silent killer in VR rhythm flow. And for flat-screen loyalists: this pack is announced for the VR version — no word here on the original PC release getting the same love. If you’re deep into the mod scene on PC, official DLC has to outclass fan charts with better feel and flair to justify the spend.

Why this matters

Undertale and Deltarune have been remixed to death, but very few rhythm games let you physically slide through those melodies with a deliberately ridiculous instrument. That’s Trombone Champ’s magic trick: you show up for the meme and accidentally find musicality in the mess. If this pack keeps that spirit — letting you slam BIG SHOT’s swagger while a pixel trombone bleeps away — it’s the kind of DLC that earns a permanent slot in a VR rotation.

TL;DR

Six iconic Undertale/Deltarune tracks hit Trombone Champ: Unflattened today for $7.99 on Quest, PS VR2, and Steam VR. The value looks good, the song choices are spicy, and the 18 challenges could seal the deal — as long as the per-platform mapping and readability hold up. Calibrate, breathe, and embrace the chaos.