Nanikura is a remake of Nintendo's Ice Climber with updated graphics and level design. When your character jumps, she will automatically attempt to destroy any blocks above her head and hence creating holes in the ceiling for her to advance upwards.
To be honest: I wasn´t entertained at all by this game. Maybe it was, because there is a storyline that I didn´t get at all, because the whole thing is in japanese. So if there is a translation, someone please tell me...