Black hole glitch

The black hole glitch is a glitch that causes several of Peach's turnips (minimum of 15) to become stuck in a small area. If anyone touches the concentrated turnips, they will receive massive damage in seconds. The glitch was discovered by Aftermath and Juce in late 2004. There are two ways to perform the glitch. The most common one is listed here first, followed by a secondary method.

Primary Method

Characters

2 Fox/Falco
1 Peach
1 optional character (must be teamed with a Fox or Falco, with Friendly Fire turned off)
With Ness as the optional character, you can add on to the Black Hole with his PK Fire (forward B) to make the Supernova.

Items

Super Scopes
Items such as Flippers and Freezies can be thrown at the Black hole for additional effects.

Stage

Instructions

The Foxes/Falcos stand on opposite platforms with a place for someone to stand underneath them.
Have the other character get a super scope, then get infinite ammo (acquired by firing five sets of three bullets, then shooting two large bullets, then getting hit when charging the gun up).
Have it stand behind the Fox/Falco on its team, and commence firing. The balls should reflect off of both shines, creating a stream of glowing balls flying back and forth.
Have Peach jump into the shots. You will see that when she jumps into it, a blue ball-like thing appears. Have Peach jump into the shots several more times. Also, stop firing then commence firing to help it go faster.
After a little while, there should be a steady beam of blueish-green and a strange noise. Have Peach throw 15 or so turnips into it. Then, once there is a mass of turnips in the blue beam, disrupt either Fox or Falco's shine.
You should have a mass of turnips floating in the air. Which you can do just about anything to.
If you jump into the turnips, you will receive a lot of damage very quickly. While being hit by the turnips, you can DI into them to stay in longer, or away to pop out.
If a character does a move into the turnips without getting hit, they may get frozen in place doing that move. Some examples include Samus' forward aerial, Mario's Up-B, and Falco's down aerial. If you touch the character, you will be hit by their move. If a character is "frozen" during an animation where he/she is invincible, such as Falco's shine or DK's up B, that character will not be able to become "unfrozen" unless the black hole is dissipated.
To make the Supernova, have Ness throw multiple PK Fires into the Black Hole. On some occasions, the fires may dissipate the turnips.

Notes: You can grab turnips out of the black hole by pressing R+A or Z in air. You can take turnips out from supernova.

Alternate Method

There is another way to do the black hole glitch.

Characters

Stages

Hyrule Temple

Items

Two super scopes

Instruction

1.First, have the Ice Climbers grab two super scopes.

2.Then, do the Infinite Super Scope Glitch (5 sets of 3 shots, followed by 2 fully charged shots, and then get attacked while charging the super scope.)

3.Then, have the Ice Climbers shoot their guns. If the bullets come out in pairs (oo oo oo) have someone attack only one of the Ice Climbers to alter the pattern until it becomes a straight line (o o o o o).

4.Then, have Peach throw 15 or more turnips into the stream of bullets while Ice Climbers keeps shooting.

Alternate method #2

This is similar to the first alternate method

Characters

2 Ice Climbers
1 Peach

Stages

Any flat, calm stage (no movement unique to the stage) that is longer than the range of the Super Scope

Items

4 super scopes

Instruction

1. Get both Ice climbers each get 2 super scopes.

2.Then, let all 4 of the super scopes do the Infinite Super scope glitch.

3.At the edge of the flat stage, let then all shot rapidly. It should appear dense (oooooo) instead of having places where they are focused in some positions.(● ● ● ● ● ● or something like that)

4.Let Peach throw turnips (toward the Ice climbers) at the tip of the range, constantly being hit while throwing. Unlike the previous two methods, the turnips stand vertically up in a uniform manner, but it still has the same properties. Throw at least 15 turnips.

5.Finally, let the 2 Ice Climbers stop. Unless the turnips aren't dense enough, they will stay in the same place (on the ground, again unlike the previous two)

Modifying

After Ness uses about 20 PK fires into the black whole to make a supernova, use his B move into it 15 times. at the start it wont look like its making any difference but you will start to see it look green. Then, it will pull you in.

You can also throw party balls into it to make it bigger.

Video

Method 1--Tutorial Video via YouTube
Method 2--Black Hole glitch training Tutorial