Time for a hack attack story! *clapping*
On a balloon battle, I met Silveria. He used his Mii on the bike on battle. On SNES Battle Course 4, I noticed a couple blue shells within the first 30 seconds, so I became suspicious. Silveria was following me without a starman while I (rather conveniently) had a bob-omb. When I dropped it behind me, I found a horde of red shells racing to me to get revenge. Down to my last balloon, I wheelie-danced to stop the madness. It worked, but another racer hit me with a shell since I was vulnerable. Most everyone left except him, me, and one other guy.
On N64 Skyscraper for coin runners, it was me and the other guy vs. Silveria. While Silveria and I continued to wheelie, my teammate collected half the coins. After awhile, Silveria collected all but the last coin, making the score 15-15. He would continuously bomb the last coin to make the match a tie.
That was a great night. I was using my Little Mac Mii (mid-weight) on the bike. If you have an epic hacker story, share it!