Xflag’s mobile game Monster Strike（モンスターストライク）will crossover with Doraemon the Movie 2017: Great Adventure in the Antarctic Kachi Kochi（ドラえもん のび太の南極カチコチ大冒険）on 7th March. The movie will be coming on 4th March.
Two characters have been revealed so far. The game will be releasing more details about one of the crossover events, "運極カチコチ大作戦キャンペーン".
Official website: https://www.monster-strike.com/promotion/doraemon2017/
