Description[]

When any user equips the Exp. Booster, the party earns twice the number of Experience Points after a battle. The player can buy the Exp. Booster from Frogfucius' Student in Seaside Town for 22 Frog Coins, and the item can be sold for 11 regular coins. The Exp. Booster is still effective if the one who has it equipped is not currently within Mario's party.

From its artwork, the Exp. Booster is a medallion necklace reading EXP x2, stating its effect.

Statistics[]

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Characters	Protagonists	Mario • Mallow • Geno • Bowser • Princess Toadstool
	Antagonists	Smithy Gang • Smithy • Mack • Bowyer • Yaridovich • Axem Rangers (Axem Red, Axem Black, Axem Green, Axem Yellow, Axem Pink) • Exor • Croco • Booster • Valentina • Dodo
	Supporting characters	Beetle Mania Toad • Boshi • Chancellor • Dr. Topper • Dyna • Elder • Frog Sage • Frogfucius' Student • Gardener • Garro • Gaz • Grandma • Hinopio • King Nimbus • Ma'Mole • Manager • Mite • Monstermama • Mushroom Boy • Pa'Mole • Queen Nimbus • Raini • Raz • Rose Town Innkeeper • Royal Bus Driver • Sergeant Flutter • Tadpoles • Three Musty Fears • Toadofsky • Treasure Hunting Toad • Triplets • Vault Guard
	Cameos	Luigi • Link • Samus Aran
Locations	Areas	Bandit's Way • Barrel Volcano • Bean Valley • Belome Temple • Booster Hill • Booster Pass • Booster Tower • Bowser's Keep • Coal Mines • Factory • Forest Maze • Gate • Grate Guy's Casino • Kero Sewers • Land's End • Mario's Pad • Marrymore • Midas River • Midas Waterfall • Moleville • Monstro Town • Mushroom Castle • Mushroom Kingdom • Mushroom Way • Nimbus Castle • Nimbus Land • Pipe Vault • Rose Town • Rose Way • Sea • Seaside Town • Sky Bridge • Star Hill • Sunken Ship • Swap Shop • Tadpole Pond • The Trial Course • The Vinery • Vista Hill • Yo'ster Isle
Bosses	Major	Smithy • Mack • Bowyer • Yaridovich • Axem Rangers • Exor • Booster • Valentina • Dodo • Croco • Belome
	Minor	Bowser • Hammer Bro • Punchinello • Knife Guy • Grate Guy • Chef Torte • Chef Torte's Apprentice • Bundt • Raspberry • King Calamari • Jonathan Jones • Megasmilax • Magikoopa • Boomer • Czar Dragon/Zombone • Cloaker • Domino • Mad Adder • Earth Link • Count Down • Ding-A-Ling • Director • Factory Chief • Manager • Kinklink • Gunyolk • Clerk • Culex • Elemental Crystals (Earth • Fire • Water • Wind)
Enemies	Enemies	Aero • Alley Rat • Amanita • Ameboid • Apprentice • Arachne • Armored Ant • Artichoker • Bahamutt • Bandana Blue • Bandana Red • Big Bertha • Birdy • Blade • Blaster • Bloober • Bluebird • Bob-omb • Box Boy • Buzzer • Carroboscis • Chained Kong • Chester • Chewy • Chomp • Chomp Chomp • Chow • Cluster • Corkpedite • Crook • Crusty • Doppel • Drill Bit • Dry Bones • Eggbert • Enigma • Fautso • Fink Flower • Fireball • Forkies • Frogog • Geckit • Gecko • Glum Reaper • Goby • Goomba • Goombette • Gorgon • Greaper • Gu Goomba • Guerrilla • Heavy Troopa • Helio • Hidon • Hippopo • Hobgoblin • Jabit • Jawful • Jester • Jinx Clone • K-9 • King Bomb • Kriffid • Lakitu • Leuko • Li'l Boo • Machine Made • Mad Mallet • Magmite • Magmus • Malakoopa • Mastadoom • Mezzo Bomb • Microbomb • Mokura • Mr. Kipper • Muckle • Mukumuku • Ninja • Octolot • Octovader • Oerlikon • Orb User • Orbison • Pandorite • Pinwheel • Piranha Plant • Pounder • Poundette • Pulsar • Puppox • Pyrosphere • Rat Funk • Reacher • Remo Con • Ribbite • Rob-omb • Sackit • Shadow • Shaman • Shogun • Shy Away • Shy Guy • Shyper • Shy Ranger • Shyster • Skytroopa • Sling Shy • Smelter • Snapdragon • Sparky • Spikester • Spikey • Spinthra • Spookum • Springer • Star Cruster • Starslap • Stinger • Straw Head • Stumpet • Terra Cotta • Terrapin • The Big Boo • Thwomp • Tub-O-Troopa • Vomer • Wiggler • Yaridovich Clone • Zeostar
Items	Regular	Able Juice • Bad Mushroom • Beetle • Bonus Flower • Bracer • Bright Card • Carbo Cookie • Crystalline • Earlier Times • Elixir • Energizer • Fire Bomb • Fireworks • Flower • Flower Box • Flower Jar • Flower Tab • Freshen Up • Fright Bomb • Frog Coin • Froggie Drink • General Items • Goodie Bag • Honey Syrup • Ice Bomb • Kerokero Cola • Lamb's Lure • Lucky Jewel • Maple Syrup • Max Mushroom • Megalixir • Mid Mushroom • Moldy Mush • Muku Cookie • Mushroom • Mystery Egg • Pick Me Up • Power Blast • Pure Water • Red Essence • Rock Candy • Rotten Mush • Royal Syrup • See Ya • Sheep Attack • Shiny Stone • Sleepy Bomb • Special Items • Star Egg • Toadstool's ??? • Wallet • Wilt Shroom • Yoshi-Ade • Yoshi Candy • Yoshi Cookie
	Weapons	Chomp • Chomp Shell • Cymbals • Double Punch • Drill Claw • Finger Shot • Froggie Stick • Frying Pan • Hammer • Hand Cannon • Hand Gun • Hurly Gloves • Lazy Shell • Masher • Mega Glove • NokNok Shell • Parasol • Punch Glove • Ribbit Stick • Slap Glove • Sonic Cymbal • Spiked Link • Star Gun • Sticky Glove • Super Hammer • Super Slap • Troopa Shell • Ultra Hammer • War Fan • Whomp Glove
	Armor	Courage Shell • Fire Cape • Fire Dress • Fire Pants • Fire Shell • Fire Shirt • Fuzzy Cape • Fuzzy Dress • Fuzzy Pants • Fuzzy Shirt • Happy Cape • Happy Pants • Happy Shell • Happy Shirt • Heal Shell • Hero Shirt • Lazy Shell • Mega Cape • Mega Pants • Mega Shirt • Nautica Dress • Pants • Polka Dress • Prince Pants • Royal Dress • Sailor Cape • Sailor Pants • Sailor Shirt • Shirt • Star Cape • Super Suit • Thick Pants • Thick Shirt • Work Pants
	Accessories	Amulet • Antidote Pin • Attack Scarf • B'tub Ring • Coin Trick • Exp. Booster • Fearless Pin • Feather • Ghost Medal • Jinx Belt • Jump Shoes • Quartz Charm • Rare Scarf • Safety Badge • Safety Ring • Scrooge Ring • Signal Ring • Troopa Pin • Trueform Pin • Wake Up Pin • Zoom Shoes
Techniques	Moves	Arrow Rain • Aurora Flash • Backfire • Big Bang • Blast • Blazer • Blizzard • Body Slam • Bolt • Bombs Away • Boulder • Bowser Crush • Breaker Beam • Carni-Kiss • Chomp • Claw • Come Back • Corona • Crusher • Crystal • Dark Claw • Dark Star • Deathsickle • Diamond Saw • Doom Reverb • Drain • Drain Beam • Echofinder • Eerie Jig • Electroshock • Elegy • Endobubble • Fangs • Fear Roulette • Fire Orb • Flame • Flame Stone • Flame Wall • Flutter Hush • Full House • Fun & Run • Funguspike • G'night • Geno Beam • Geno Blast • Geno Boost • Geno Flash • Geno Whirl • Get Tough! • Grinder • Group Hug • Gunk Ball • Hammer Time • Howl • HP Rain • Ice Rock • Ink Blast • Iron Maiden • Jinxed • Last Shot! • Light Beam • Lightning Orb • Loco Express • Lulla-Bye • Magnum • Mega Drain • Mega Recover • Meteor Blast • Meteor Swarm • Migraine • Mirage attack! • Missed me! • Multiplier! • Multistrike • Mute • Petal Blast • Pierce • Poison • Poison Gas • Pollen Nap • Psych Bomb • Psyche! • Psycho Plasm • Psychopath • Quicksilver • Recover • S'crow Bell • S'crow Dust • S'crow Funk • Sand Storm • Scream • Scythe • Shaker • Shocker • Shredder • Silver Bullet • Skewer • Sledge • Sleep Sauce • Sleepy Time • Snowy • Solidify • Somnus Waltz • Spear Rain • Spore Chimes • Sporocyst • Spritz Bomb • Star Rain • Static E! • Stench • Storm • Super Flame • Super Jump • Sword Rain • Terrapunch • Terrorize • Therapy • Thornet • Thunderbolt • Triple Kick • Ultra Flame • Ultra Jump • Va Va Voom • Valor Up • Venom Drool • Vigor Up! • Viro Plasm • Water Blast • Weird Mushroom • Wild Card • Willy Wisp
Miscellaneous	Features	Grate Guy's Casino
	Minigames	Beetle Mania • Beetle Race • Goomba thumping • Look the other way • Moleville Mountain • Mushroom Derby • Wheeere's Yoshi?!
	Terms	Level Up
	Other	Soundtrack