I found a glitch that let me jump from waypoints, and then proceeded to...

CHEESE the game.

Fun short game, and I liked the ending a lot. Noclip as a completion bonus is awesome too, when I think of big house stuff I think of Gmod because of a map I played on when I was younger so that, along with the movement that felt very source-like, was nostalgic and added to the experience a lot for me.