Arrow keys to move, '+' & '-' change Depth of view, Numpad 'END' & 'PGDN' move only on x axis, 't' toggle textures, 'd' toggle dynamic lighting, 's' toggle music, 'a' toggle animate textures, '[' & ']' change Resolution/Ray size.
Wolfoom 3d-ish, Raycaster from scratch! v0.1a by Hristo Izo Gueorguiev