You can get the Attack Scarf and the Super Suit from friendly Chow in Monstro Town after you do 30 consecutive Super Jumps to get the Attack Scarf, and 100 consecutive Super Jumps for the Super Suit.
Chow’s Room
First, let’s head to Monstro Town.
Head to the second to the last door on the side of the town to find Chow’s room.
Overview of where you can find Chow:
How to Super Jump
You can begin attempting the Super Jump challenge as soon as you learn the move when Mario gets to Level 6. Just head to wherever there are enemies to battle, and you can use your Super Jump on them. You have endless choices on which enemies to choose to use the Super Jump on! Be mindful, though, because the counter resets if you miss one jump.
Focus is the main key to acing this challenge. That’s why as soon as Mario’s feet lands on the enemy’s head, hit the Y button repeatedly. Once you get the rhythm and timing correctly, you’ll probably ace it without breaking a sweat.
How to get Attack Scarf
Once you’ve managed to get the jumps, head to Monstro Town again to talk to Chow. He keeps a record of your jumps.
Talk to him. And he’ll give you the Attack Scarf, if you managed to get the required number of jumps.
How to get Super Suit
If you successfully do 100 consecutive jumps, talk to Chow to gain the Super Suit.
Both of these items are worth getting, because of the stats that they can add once equipped.
Attack Scarf
This can only be equipped with Mario and can provide a HUGE boost in stats. It provides protection against mortal blows as well.
Super Suit
You can equip the Super Suit on anybody in your party. Like with the Attack Scarf, it boosts your stats by a huge margin. You’ll also be invulnerable to negative status effects and elemental attacks.
Another thing, you can sell both these items, the Attack Scarf for 750 coins, and the Super Suit for 350 coins, but will that amount really be worth it for all your efforts?