Oh man. Never again will I be able to hear that little piece of music that plays whenever the rival makes his exit without laughing. XD
Well, from what I've noticed, many Secret Bonus Points are obtained by attacking someone or something that doesn't necessarily have to be attacked. So what I recommend is that you seek out the most harmless-looking person you can, particularly a very harmless-looking person who is somewhere they needn't be, and give 'em a good, hard smack with a chicken/avocado basket (it's okay to drop the avocados as long as the green side's song's not playing)/whatever's handy. :3
Speaking of DH, this is a thing of glory.
Speaking of DH again, I learned last night that in the beta version, HE was always red. I guess he still had the whole happy face/"DIE"-face thing going on, but BOTH were red sides. This leads me to wonder what the theme for the red-yet-cheerful version would be. My current answer is that it's the green side's theme and the red side's theme playing simultaneously. o.o