Arrow keys to move Number keys to switch to another preset (1-6) Preset 1 (Inner Vertical): 2 vertical portals on the sides of the viewport. Preset 2 (Inner Horizontal): 2 horizontal portals on the sides of the viewport. Preset 3 (Outer Vertical): 2 vertical portals on the side of the viewport, player starts outside the box. Preset 4 (Rotation): 1 portal is rotated by 15 degrees. Preset 5 (Scaling): 1 portal is larger than the other one. Preset 6 (Outer Vertical No Culler): Like preset 1, but the other copies of the player are not hidden.
