Obtain the Nature medal
Obtain the Nature medal without using items
Obtain the Mystic medal
Obtain the Mystic medal without using items
Obtain Synth medal
Obtain the Synth medal without using items
Defeat the Champion
Defeat the Champion without using items
Fully level one of your mon's (If it doesn't work with the first, quickly boost a 2nd)
Max out your gold
Stockpile full stacks of every item