JS SUPERPOWER

<canvas id="c" />
<script>
    b = document.body, a = c.getContext('2d');
    document.body.clientWidth;
    c.width = c.height = w = 410;
    W = w / 2;
    cx = cy = h = 99;
    cp = Z = 0;
    ca = .9;
    hD = [];
    d = [];
    X = -20;
    c.onmousemove = function(e) { X = e.clientX - W;
        Y = e.clientY - W }
    setInterval(function() {
        cx += Math.cos(ca += X / w / 9);
        cy += Math.sin(ca);
        h += cp = h < 4 ? .1 : cp - Y / w / 9;
        if (hD[(cx | 0) + (cy | 0) * w + W] / 7 > h) cp = 1;
        for (x = w; x--;) {
            L = w;
            R = ca + Math.asin((x - W) / w);
            for (y = 700; y > W; y--) {
                T = w * h / (y - W);
                tX = cx + T * Math.cos(R) | 0;
                tY = cy + T * Math.sin(R) | 0;
                i = tX < 0 || tY < 0 || tX > w || tY > w ? 0 : tX + tY * w + W;
                k = hD[i];
                o = k * 50 / T | 0;
                N = y - o < 0 ? 0 : y - o;
                if (N < L) {
                    s = T / w;
                    l = s > 1 ? 0 : U / s;
                    for (o = L - N, L = N; o--;) {
                        j = (x + N * w + o * w) * 4;
                        D[j + 3] = l;
                        D[j] = U;
                        if (!k || o) { D[j] = k == U ? 99 : k && !(o % 9) ? U : d[i * 4];
                            D[j + 1] = !k ? 99 : d[i * 4 + 1];
                            D[j + 2] = i ? d[i * 4 + 2] : W;
                            D[j + 3] = o && o < w / T && L > 1 ? U : i ? l += Math.cos(s) : Math.sin(R * T) > .8 ? l * .8 : l }
                    }
                }
            }
        }
        for (i = 3; i < w * w * 4; i += 4)
            if (!D[i]) { D[i] = (w * w * 4 - i) / w / 9 * (i / 4 % w) / i * 3 * w;
                D[i - 1] = W;
                D[i - 2] = D[i - 3] = cx }
        a.putImageData(I, 0, 0);
        while (i--) D[i] = 0;
        Z++;
        Z %= w;
        for (i = 9; i--;) { o = 5 + U * i + Z * w; if (Z < w - 1) hD[o] = 9;
            hD[o - w] = 0 }
    }, U = Y = 40)
    for (i = w * w; i--;) {
        x = i % w;
        y = i / w;
        z = y % U > 16 && x % U > 11 ? Math.abs(Math.cos(x / U | 0) / Math.cos(y / U | 0) * h) : 0;
        hD[i] = z < U ? 0 : x % 74 > U && y % 75 > U ? z / ca : z;
        d[i * 4] = d[i * 4 + 1] = d[i * 4 + 2] = (x - 3) % U < 4 || (y - 3) % U < 9 ? h : x % 8 < 2 || y % 9 < 2 ? 0 : Math.cos((x / 8 | 0) + (y / 9 | 0)) < ca ? hD[i] && x % W > h && y % W < h ? U + h : U : 0;
        if ((x - 8) % U > 38 && (y - 2) % U > 38) hD[i + 1] = U
    }
    I = a.getImageData(0, 0, w, w);
    D = I.data;
</script>