Board Thread:General Discussion/@comment-5784644-20160220192950/@comment-26662104-20160220194516

And also, why doesn't Asgore just dig a tunnel past Mt. Ebott and out on some otehr location that isn't covered by the barrier?

I think the main problem is that Asgore, and almost the entire population of the Underground, lacks DETERMINATION. So they weren't motivated enough to think it through and just went with the direct path.