Been searching for years, but I kind of suck at explaining
The first one is set in pre historic times. It involves a one eyed T-rex that killed the boy's father or something
The 2nd is set in space. It's a band of kids. One is a princess. One has a calculator that answers almost everything and one has like a lance you can pull out and such. I don't really know how to explan this one. So I have a hard time on it. I just remember loving it.