PK Thunder freeze glitch

The PK Thunder freeze glitch is a specific glitch for with  in Super Smash Bros.

To perform the glitch, choose a stage with a direct line between Ness and Fox (ideally, Hyrule Castle or Sector Z). PK Thunder against Fox's Reflector so that the PK Thunder is in direct line back to Ness, and then use Ness' forward smash to bat the PK Thunder away. The PK Thunder should have two tails, and if it reaches the edge of the screen or collides with a platform, the game can't handle it and will freeze.