for such a low fi game it's clear the dev never considered the ability to play on a laptop / touch pad, this absolutely will not work without a 3 button mouse.
Also, it seems to soft-lock on the first level after achieving all the goals.
there are some small errors in the demo scene - the bundled postprocessing settings aren't applied, and you've left a (presumably) orphan script reference attached to the scene camera.
This does look like fun and a good starter project. I'd be happy to give you a full review in exchange for a free copy, but as it stands it's got to few reviews for it to be worth tasking the risk on buying.