Sci-fi movie about 4 uni students finding a base that let’s them transform into robots

There’s this movie i watched years ago, its basically about what I put in the title, Sci-fi movie about 4 uni students finding a base that let’s them transform into robots () pink, orange, blue, and another color which i forgot) and they get to go into an online world like a VR, but if their robot runs out of battery, they die. I also remember this like assistant robot thing and her name is Vera, I faintly remember her going into one of the 4 students’ house in the form of a girl (no glasses, high ponytail) when the protagonist (the blue robot) nearly got himself killed by draining the battery.