How many players can play at once?

Up to four, all on the same TV with Wii Remotes. There is no online multiplayer.

Do I need extra controllers?

Each player needs a Wii Remote. The game is played with the Remote held sideways, so a Nunchuk is not required.

It follows the same 2D style and power-ups but adds simultaneous multiplayer and new suit power-ups.

Yes. Controls are simple and levels are forgiving, though the shared camera can frustrate very young players.

Yes, the Wii U plays Wii discs, so it runs there in Wii mode.

Solo is a solid, long campaign, but most owners say the multiplayer is what sets it apart.

At Stateline Video Games Inc., for $40.00, as of our latest check.

$40.00at Stateline Video Games Inc.Checked Nov 10

Prices are checked against each store and labelled with when.

It checks today's price at every store, compares the alternatives and answers in about a minute.