Version 1.0.6 “game balance adjustments” for Super Smash Bros. Wii U

There are a few major new/changed mechanics that we currently know of:

• Random tripping has been removed; forced tripping is still in.
• You cannot grab a character if you've thrown them in the last second (no chaingrabs).
• There is no longer a difference in edge actions upon reaching 100% damage.
• Edgehogging has been removed; instead, the incoming character will steal the edge from the current occupant.
• It appears that swimming has been removed; characters will just fall through water as in Melee.
• Directional influence has been revamped. In previous games, you could change the angle of your knockback by holding perpendicular to it. In SSB4, you instead add a vector in your holding direction, which can alter both your angle and your distance.
• Characters at high damage deal slightly more knockback.

The requirements to unlock each stage can be found in this blog post:

• Kongo Jungle 64: Clear the "The Original Heavy Weights" event in Event Match (single player).

• Smashville: Clear the "Playing Tricks" event in Event Match (single player).

• Pokemon Stadium 2: Clear the "Lightning Strikes" event in Event Match (single player).

• PAC-LAND: Play all the maps in Smash Tour.

• Flat Zone X: Play alone as Mr. Game & Watch and destroy 100 blocks in a single game of Trophy Rush.

• Duck Hunt: Get one or more KOs in a single Solo Cruel Smash.

I have confirmed all of these methods and that these are all of the unlockable stages.