Speed Run 64 (PRE-CONTINUED)

Fixed Level 3 song not playing; 

Fixed a secret;

Fixed winners song sometimes playing;

Updated the books credit "BOSSFIGHT" to "Bossfight" and concluded that no mod breaks the Copycats+ slopes, the 1.18.2 version breaks them;

Tweaked the death commands;

Placed a lava source in level 9 next to one of the platorms.