Encryption through Unicode escape sequences, as you said, it can be considered confusing

<script> 
test = "I'll add a secret to play, even if it's trash, don't be surprised!"

str = "" 
for( i=0; i<; i++ ) 
{ 
 temp = (i).toString(16); 
 str += "\\u"+ new Array(5-String(temp).length).join("0") +temp; 
}  
 (str) 
</script>