1. Is it possible to get in without a degree
2. at least in companies like Square-Enix withyears experience of course.
1. Anything is possible, but you really ought to get a degree. Read FAQs 50 and 24 (this forum's FAQs).
2. You don't have experience, if you're in high school. http://www.igda.org/...me-october-2006
Edit: Why? Why won't you get a degree? And what country do you live in?