"Rise of the Legend" asks the question of 'Can sheer entertainment value overcome any obstacle?'. There are so many problems with this movie and I still had a lot of fun with it, so...yes...it can...and in hindsight, that is a pretty stupid question considering that cinema mostly exists for our entertainment.
"Tremors 5" is actually a decent sequel, which might sound like an impossible sentence to form after you discover that Jamie Kennedy and the guy who directed "Lake Placid: The Final Chapter", "Who's Your Caddy?", "Kindergarten Cop 2", "Sniper: Legacy", "Sniper: Ghost Shooter", "Jarhead 2: They'll Make A Sequel Out Of Anything" are both involved, yet it is.
"Tremors 4: The Legend Begins" is...OK, at least in parts. When I rented it in 2004, I was underwhelmed, but I think it has gotten a little better with age.
"Tremors 3: Back to Perfection" is not very good, but at least the cast seems to be having fun and I do believe the filmmakers tried their best with very little to work with.