Underground by Koji Kondo
A Clone Hero custom chart, from the CSC Quarterly Pack - 2nd Quarter 2026 pack.
Miscellany / Custom Songs Central / Custom / Super Mario Bros. Official Soundtrack / 1985 / Chiptune
On Expert Lead it scores D 7.74, Calc Tier 1, at or above 3% of the site’s Expert Guitar charts. On Expert Bass it scores D 7.74, Calc Tier 1, at or above 33% of the site’s Expert Bass charts. As a band it places at tier 1, the mean of its two hardest core parts.
| Part | Expert | Hard | Medium | Easy |
|---|---|---|---|---|
| Lead Tier 1 | 7.743% | 6.717% | 4.223% | 2.734% |
| Bass Tier 1 | 7.7433% | 6.7132% | 4.2216% | 2.7312% |
Ranked #51 of 53 songs in CSC Quarterly Pack - 2nd Quarter 2026 on Expert guitar, and #2170 of the 2,257 songs on the site with an Expert guitar chart. 90 notes over 0:27, 3.3 a second on average.
Nearby on Expert guitar: harder: Oh No by Wilder. (D 7.76, tier 1), Mr. Roboto by Styx (D 7.76, tier 1); easier: The Hardest Button to Button by The White Stripes (D 7.69, tier 1), It's Bugsnax! by Kero Kero Bonito (D 7.68, tier 1)
In CSC Quarterly Pack - 2nd Quarter 2026: harder: A Child's Shadow & The New Century Dawns by Jessica Curry (D 7.95, tier 1), And What's Your Vibe by nth Circle Studios (D 8.44, tier 1); easier: Underwater by Koji Kondo (D 6.97, tier 0), Saved the Princess by Koji Kondo (D 5.36, tier 0)
More by Koji Kondo: Castle by Koji Kondo (D 16.75, tier 5), Super Mario Bros. (Full OST) by Koji Kondo (D 16.73, tier 5), Jingle Medley by Koji Kondo (D 8.79, tier 2), Ground Theme by Koji Kondo (D 8.78, tier 2), Underwater by Koji Kondo (D 6.97, tier 0)
From CSC Quarterly Pack - 2nd Quarter 2026, whose every song is ranked by difficulty on its page.
D is the difficulty fretwork computes from the chart’s note density and movement, with the percentile among charts of the same instrument and level on the site and the Calc Tier anchored to the Expert chart; how it is scored and what the library holds. A number opens that chart’s graph.