Yeah, like he bumped into a few walls with some jumps a few times. I'm sure that wasn't his intent, since he was trying to make it into the portal.

There were some things I didn't understand.

Like, when he was running up the long stair case. Why did he run along the wall? Did that increase speed? And, why did he go the route of sliding backwards, up the other staircase as opposed to running like he previous did?