There is no explicit swing height control in this game but that doesn't stop you from hitting people in the face! Using only the mouse, Prof. Gil takes to the arena hub to demonstrate how turning can manipulate the height at which his swing connects. The technique as described works with just about anything that isn't a pole arm, but the principles apply broadly to poles and greatswords.
The song is Arena Hub - Exanima
and the outro is Warming up with Doc - Mike Tyson's Punch-Out!!

00:00 - Great Teacher Gil
0:36 - Right to Left
1:43 - Left to Right
3:28 - My Work Here is Done