From the Super Mario Wiki
When the player decides to stop here, the player will meet Mr. Blizzard, who is practicing his pitching. His quest, Cool as Ice, involves the player engaging in a little baseball game with him. Mr. Blizzard will throw five balls at the player, and they must try to hit a home run at least once. If the player succeeds, Mr. Blizzard will reward him or her with the Gaddget Mini Slugger.