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.
Obtain 1,000,000 Gold in total.
Get the highest rating 200 times in total in Ranked Match results.
Obtain 1,000 ★ in Missions in total.
Purchase an item at the Shop 100 times in total. (Purchasing multiple items at once only counts for 1 time.)
Become Champion 100 times in total in Ranked Matches.
K.O. 300 opponents in total in Ranked Matches.
Obtain 50 Emblems.
Reach Player Level 50.
Reach Pro rank.
Reach Amateur rank.
Create a "My Banner"
Complete the Tutorial. (Can be achieved even if Tutorial is skipped.)
Obtain 1,000,000 Agency Points in total.