Attack Scarf You must perform 30 consecutive Super Jumps in battle. After you do that, talk to the dog in Monstro Town that counts the number of times you jumped.
Bright Card In Booster's Tower, after you beat Land's End, travel through the tower some, You will see Knife Guy, win his game 8 times and he will give you this.
Fertilizer After you beat Nimbus Palace, there will be a secret path on the right of Nimbus Town. Talk to the Shy Guy. Getting the Super Suit You must perform 100 consecutive Super Jumps on an enemy in battle. After you do that, talk to the dog in Monstro Town that counts your jumps.
Lamb's Lure Use the Mystery Egg 10 times with the Princess, she must have the B'Tub Ring equipped.
Sheep Attack Use Lamb's Lure 48 times in battle. Star Egg Win Grate Guy's "Look the other way" game 100 times. It does NOT have to be in a row.
Troopa Pin In Land's End, on the Troopa Jumping game, if you get 12 seconds or under, you will earn this.
Notice: this only works in the SFC/Japanese version. Open the menu screen (by pressing X), then press Down, Up, Right, Left, Select, Start, Select, Start, B. Kinopio (Toad) pops up and asks to see your status, giving you little tips and tricks.
To easily level up save before you hit a star chest then run around like crazy until you run out of star power, then let a monster kill you and youll return to the place you last saved, your level will still be the same as before you died but everything else will still be the same (note: the highest level you can achive is 30, 9999 exp. Points)