How to not get kicked for targeting a single opponent

The amount of circle pad movement affects the amount of coins you gain after a match.

Specifically, the circle pad has to go to its neutral position before moving it again for more coins, so you can't just rotate it around. Source: Reddit thread

Ganondorf can hit it over 7000ft, and doesn't require the Home Run Bat to do so:

• Start by doing 2 uncharged Smash attacks to the right.
• Immediately start doing tilt attacks to the left, 8 times. (Hold left and repeatedly tap Attack)
• Sandbag will land behind you. Still facing left, use Warlock Punch (Standard B) but immediately tap right. Ganondorf will turn whilst charging the punch.
• This special version of Warlock Punch does much more damage (2* or 1.5*, I forget), and will launch Sandbag clear of 7000ft (~1600m in the EU version). (If you jump, activate warlock punch, and turn, it does even more)