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    Danger! High Voltage

    9.0/10
    Release September 2017· Updated June 2026

    BTG electric rock theme (Sept 2017) — Gates of Hell vs High Voltage FS. BCE Score: 9.0/10.

    RTP
    95.67%
    Volatility
    High
    Max Win
    15 580x
    Grid
    6x4
    Bonus Buy
    No
    Gates of Hell Free SpinsHigh Voltage Free SpinsDoubled WildsHeart-Sticky Wilds
    Danger! High Voltage
    🎰

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    BetsRank Verdict

    Hands-on testing by Alexandre Dubois — bonus tested, multiple sessions

    BTG electric rock theme (Sept 2017) — a cult favorite for its two distinct FS bonuses. RTP 95.67% (below average), max 15,580x. 6x4 format / 40 fixed paylines. Gates of Hell FS (heart-shaped sticky wilds) or High Voltage FS (doubled wilds + multipliers).

    Strengths

    • +Two distinct FS modes (Gates of Hell vs High Voltage)
    • +Cult electric rock theme
    • +Decent 15,580x max win
    • +Iconic Heart-Sticky Wilds

    To consider

    • RTP 95.67% below average
    • Vintage 6x4 / 40-payline format
    • No bonus buy

    About Danger! High Voltage

    Released on September 21, 2017, Danger! High Voltage is a cult BTG slot inspired by the song 'Danger! High Voltage' by the band Electric Six. RTP 95.67% (below BTG's average of 96.20%), high volatility, max 15,580x. Format 6x4 / 40 fixed paylines (vintage compared to modern Megaways). The signature mechanic: two distinct Free Spins modes to choose from before the bonus: Gates of Hell Free Spins: 7 spins with Heart-Sticky Wilds (heart-shaped wilds that stay on the grid until the bonus ends). Progressive wild build-up means potential for big wins. High Voltage Free Spins: 12 spins with Doubled Wilds (every wild doubles the wins) plus multipliers. More spins, but no sticky feature. The 15,580x max is mainly reached via Gates of Hell with a saturated wild grid, or High Voltage with stacked multipliers. No Bonus Buy available.

    Key mechanics

    • 6x4 format / 40 fixed paylines
    • RTP 95.67%
    • High volatility
    • Two distinct FS modes
    • Gates of Hell FS (7 spins + Heart-Sticky Wilds)
    • High Voltage FS (12 spins + Doubled Wilds + multipliers)
    • Electric Six rock theme

    FAQ Danger! High Voltage

    What is the RTP?

    Official RTP: 95.

    67% (below BTG's average of 96. 20% — a 2017 design choice).

    Gates of Hell vs High Voltage FS?

    Gates of Hell: 7 spins + Heart-Sticky Wilds (sticky build-up).

    High Voltage: 12 spins + Doubled Wilds + multipliers. The choice at trigger comes down to variance preference.

    Theme?

    Inspired by the song "Danger!

    High Voltage" by the band Electric Six (2003). Electric rock aesthetic with lightning and neon symbols.

    Danger High Voltage vs Danger High Voltage 2?

    Original (2017): 6x4/40, max 15,580x, two-mode FS.

    Sequel (2023+): Megaways format, boosted max win, modernized mechanics.

    Is it available at online casinos?

    Yes — Danger!

    High Voltage is widely available at online casinos offering Big Time Gaming titles.

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    Alexandre Dubois
    Alexandre Dubois

    Online Casino & Bonus Expert

    Last updated: 6/27/2026

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    Slot sheet last updated on · Sources: slotcatalog.com, official provider sites, BetsRank hands-on testing