Monster Strike
Ren Homura returns to his former residence, yet he feels very uncomfortable: he possesses no memory of having lived there. Without warning or his permission, a game called "Monster Strike" installs itself into Ren's smartphone; monsters of the game then literally fly out from his smartphone and start fighting on streets. Watching the fighting in amazement, Ren starts picking up his lost memories.
You may like
Mega Man
Even Given the Worthless "Appraiser" Class, I'm Actually the Strongest
I Left My A-Rank Party to Help My Former Students Reach the Dungeon Depths!
Panzer World Galient
Hungry Heart: Wild Striker
BanG Dream! Morfonication
Ghost in the Shell: SAC_2045
Donyatsu
Driland
Battle Spirits: Sword Eyes
This Boy Is a Professional Wizard
Hakone-chan
Fire in His Fingertips
DEMON LORD 2099
Attack on Titan
Oh! My Goddess
All Purpose Cultural Cat Girl Nuku Nuku (TV)
Mushiking: The Guardians of the Forest
The Food Diary of Miss Maid
Rilakkuma
Cerberus
Skeleton Knight in Another World
Everything for Demon King Evelogia
Claymore