Nitro Type Hard Mode

Full visual chaos + rare system event overlay (cosmetic only)

You will need to install an extension such as Tampermonkey, Greasemonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey to install this script.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Userscripts to install this script.

You will need to install an extension such as Tampermonkey to install this script.

You will need to install a user script manager extension to install this script.

(Tôi đã có Trình quản lý tập lệnh người dùng, hãy cài đặt nó!)

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

(I already have a user style manager, let me install it!)

/// ==UserScript==
// @name         Nitro Type Hard Mode
// @namespace    http://tampermonkey.net/
// @version      1.0
// @description  Full visual chaos + rare system event overlay (cosmetic only)
// @author       surprise
// @match        https://www.nitrotype.com/*
// @grant        none
// ==/UserScript==

(function () {
    'use strict';

    const isRace = window.location.href.includes("/race");

    // ================= STYLE =================
    const style = document.createElement("style");
    style.innerHTML = `
        /* SHAKE */
        @keyframes shake {
            0% { transform: translate(0,0); }
            25% { transform: translate(1px,-1px); }
            50% { transform: translate(-1px,1px); }
            75% { transform: translate(1px,1px); }
            100% { transform: translate(0,0); }
        }

        .shake-mode {
            animation: shake 0.15s infinite;
        }

        /* WORD FLIP */
        .flip-hardmode {
            transform: rotate(180deg) !important;
            display: inline-block !important;
        }

        /* RAIN */
        .rain-overlay {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            pointer-events: none;
            z-index: 999998;
            background: repeating-linear-gradient(
                180deg,
                rgba(255,255,255,0.04),
                rgba(255,255,255,0.04) 2px,
                transparent 2px,
                transparent 6px
            );
            animation: rainMove 0.25s linear infinite;
        }

        @keyframes rainMove {
            from { transform: translateY(0); }
            to { transform: translateY(20px); }
        }

        /* DOOM OVERLAY */
        .doom-overlay {
            position: fixed;
            top: 12%;
            left: 50%;
            transform: translateX(-50%);
            z-index: 999999;
            pointer-events: none;
            font-family: monospace;
            text-align: center;
            color: rgba(255, 60, 60, 0.95);
            text-shadow: 0 0 12px rgba(255,0,0,0.6);
            opacity: 0;
            transition: opacity 0.4s ease;
        }

        .doom-overlay.show {
            opacity: 1;
        }

        .doom-box {
            border: 2px solid rgba(255, 60, 60, 0.85);
            padding: 16px 26px;
            background: rgba(0, 0, 0, 0.78);
            border-radius: 10px;
            min-width: 340px;
        }

        .doom-title {
            font-size: 18px;
            letter-spacing: 2px;
            margin-bottom: 8px;
        }

        .doom-sub {
            font-size: 12px;
            opacity: 0.75;
            margin-bottom: 10px;
        }

        .doom-bar {
            height: 6px;
            background: rgba(255, 0, 0, 0.2);
            margin: 6px 0;
            position: relative;
            overflow: hidden;
        }

        .doom-bar::after {
            content: "";
            position: absolute;
            width: 40%;
            height: 100%;
            background: rgba(255, 0, 0, 0.85);
            animation: moveBar 1s infinite alternate;
        }

        @keyframes moveBar {
            from { left: 0; }
            to { left: 60%; }
        }

        .doom-warning {
            font-size: 13px;
            margin-top: 10px;
            letter-spacing: 1px;
        }
    `;
    document.head.appendChild(style);

    // ================= RAIN =================
    const rain = document.createElement("div");
    rain.className = "rain-overlay";
    document.body.appendChild(rain);

    // ================= SHAKE =================
    setInterval(() => {
        document.body.classList.toggle("shake-mode");
    }, 700);

    // ================= HUE SHIFT =================
    setInterval(() => {
        document.body.style.filter = `hue-rotate(${Math.random() * 360}deg)`;
        setTimeout(() => document.body.style.filter = "", 500);
    }, 3000);

    // ================= EMOJIS =================
    function spawnEmoji() {
        const emojis = ["💀", "⚡", "🔥", "🚗", "😵", "🏁", "💨"];
        const el = document.createElement("div");

        el.textContent = emojis[Math.floor(Math.random() * emojis.length)];
        el.style.position = "fixed";
        el.style.left = Math.random() * window.innerWidth + "px";
        el.style.top = Math.random() * window.innerHeight + "px";
        el.style.fontSize = "28px";
        el.style.zIndex = "999999";
        el.style.pointerEvents = "none";
        el.style.opacity = "0.85";

        document.body.appendChild(el);
        setTimeout(() => el.remove(), 1500);
    }

    setInterval(spawnEmoji, 2000);

    // ================= WORD FLIP (25%) =================
    function getWords() {
        return document.querySelectorAll('[class*="word"], [class*="Word"], span');
    }

    function maybeFlipWords() {
        if (!isRace) return;

        const words = getWords();
        if (!words.length) return;

        if (Math.random() < 0.25) {
            words.forEach(w => w.classList.add("flip-hardmode"));

            setTimeout(() => {
                words.forEach(w => w.classList.remove("flip-hardmode"));
            }, 900 + Math.random() * 1000);
        }
    }

    setInterval(maybeFlipWords, 2500);

    // ================= DOOM EVENT (RARE) =================
    const doom = document.createElement("div");
    doom.className = "doom-overlay";
    doom.innerHTML = `
        <div class="doom-box">
            <div class="doom-title">SYSTEM EVENT</div>
            <div class="doom-sub">UNSTABLE RACE ENVIRONMENT DETECTED</div>

            <div class="doom-bar"></div>
            <div class="doom-bar"></div>
            <div class="doom-bar"></div>

            <div class="doom-warning">>> HARD MODE ACTIVE <<</div>
        </div>
    `;
    document.body.appendChild(doom);

    function triggerDoom() {
        if (!isRace) return;

        // rare scare moment
        if (Math.random() < 0.06) { // ~6% chance
            doom.classList.add("show");

            setTimeout(() => {
                doom.classList.remove("show");
            }, 3000 + Math.random() * 2000);
        }
    }

    setInterval(triggerDoom, 5000);

})();