on pc you are able to rotate the camera, if you right click or middle click and drag. on the "nightly" version (which is currently only available as a download) you can also zoom in and out with the mouse wheel.
if you're on mobile... i don't believe i've implemented any camera controls yet, sorry. there is a pause/options menu as well (opened with esc on pc) but i believe it is also currently inaccessible on mobile.