Super Mario Bros. X: Alternate Kingdom

Super Mario Bros. X: Alternate Kingdom is an upcoming fan-made Mario game under development by Prince Ludwig. It will be the first installment of the Super Mario Bros. X series. The story tells the tale of Mario, Luigi, Toad and Yoshi found in a mysterious kingdom, which was saved by Varun, Marvin and Doshi long ago. The heroes met up with Marvin, the hero who was trying to search for Doshi and Princess Apple, who were involved with the invasion of Blaize on the kingdom, and started their quest helping Marvin to save the kingdom and his friends. It is confirmed to be released in late 2012 or sometime in 2013.

It is confirmed that Alternate Kingdom will introduce new enemies who Mario will face during his adventure, such as those who are based on supernatural beings that even existed in ancient times of the Super Mario Bros. X series.

Playable

 * Mario
 * Luigi
 * Toad
 * Yoshi (as rideable)

Bosses

 * Bakudan (All Worlds)
 * Birdie (All Worlds except World 1)
 * Jr. Troopa
 * Kamek
 * Bessie Bass (World 3)
 * False Blaize (World 4, World 9)
 * Libitina (World 5, World 10)
 * Blazerlings
 * 7th Child (World 1)
 * 6th Child (World 2)
 * 5th Child (World 3)
 * 4th Child (World 4)
 * 3rd Child (World 6)
 * 2nd Child (World 7)
 * 1st Child (World 8)
 * Blaize Jr. (All Worlds)
 * Blaize (Final World)

Supporting Characters

 * Doshi
 * Marvin
 * Poochy
 * Princess Apple
 * Toads
 * Yoshis
 * Bob-omb Buddies

New Enemies

 * Switch Goombas
 * Plane Guys
 * Car Guys
 * Venus Ice Traps
 * Blizzard Lotuses

Returning Enemies

 * Amps
 * Banzai Bills
 * Banzai Bill Blasters
 * Big Boos
 * Bill Blasters
 * Blarggs
 * Bloopers
 * Blurps
 * Bob-ombs
 * Bob-ulks
 * Boo Guys
 * Boos
 * Boulders
 * Bullet Bills
 * Bullies
 * Bumpties
 * Buzzy Beetles
 * Chain Chomps
 * Cheep-Cheeps
 * Climbing Koopas
 * Cobrats
 * Coin Coffers
 * Cooligans
 * Crowbers
 * Deep Cheeps
 * Dr. Freezegoods
 * Dry Bones
 * Duplighosts
 * Eeries
 * Fat Guys
 * Firebars
 * Fishbones
 * Flurries
 * Fly Guys
 * Flying Piranha Plants
 * Frog Pirates
 * Frost Piranhas
 * Fuzzies
 * Gloombas
 * Grand Goombas
 * Goombas
 * Goomba Towers
 * Grinders
 * Grinders
 * Hammer Bros.
 * Hoopsters
 * Hootie the Blue Fishs
 * Kamikaze Koopas
 * Koopa Troopas
 * Koopa Paratroopas
 * Lakitus
 * Lava Lotuses
 * Mega Fuzzies
 * Mega Cheep Cheeps
 * Mega Deep Cheeps
 * Mega Moles
 * Mock Ups
 * Ninjis
 * Nippers
 * Paragoombas
 * Piranha Plants
 * Podoboos
 * Porcu-Puffers
 * Pokeys
 * Rexes
 * Rocket Engines
 * Scuttle Bugs
 * Shy Guys
 * Sidesteepers
 * Sledge Bros.
 * Snapjaws
 * Snifits
 * Sparks
 * Spear Guys
 * Spike Tops
 * Spiked Balls
 * Spinies
 * Spiny Cheep-Cheeps
 * Stilt Guys
 * Super Thwomps
 * Swoopers
 * Tap-Taps
 * Thwomps
 * Trouters
 * Tweeters
 * Urchins
 * Venus Fire Traps
 * Volcano Lotuses
 * Whomps
 * Wigglers
 * Zingers

Comic/Flash Animation
The developers are thinking about a comic or a flash animation of Alternate Kingdom, but uncertain if it will happen. It's confirmed that they will make an announcement before the start of Sea Side Adventure's flash animation.