Here is the full list of all 15 MY HERO ULTRA RUMBLE achievements.
Send 10,000 Likes in total.
Unlock 10 Illustrations in the Gallery.
K.O. 300 opponents in total in Ranked Matches.
Purchase an item at the Shop 100 times in total. (Purchasing multiple items at once only counts for 1 time.)
Reach Player Level 50.
Reach Pro rank.
Obtain 1,000 ★ in Missions in total.
Obtain 50 Emblems.
Reach Amateur rank.
Create a "My Banner"
Complete the Tutorial. (Can be achieved even if Tutorial is skipped.)
Become Champion 100 times in total in Ranked Matches.
Obtain 1,000,000 Gold in total.
Obtain 1,000,000 Agency Points in total.
Get the highest rating 200 times in total in Ranked Match results.