Nice game, very good level design and music, liked the oil mechanics a lot! Overall feels solid!
actually beat the game few hours ago, took screenshot of the final screen, wrote a review and..... forgot to press "post" button, such a shame, so this review is much smaller. But i saved the sun, i swear!
First walkthrough went flawless, fast and quiet enjoyable, but second time i noticed that if you ignite a rope, then leave the room = fire stops midway, that won't let you keep your way. Hope its gonna help you polish the game. Controls and mechanics are intuitive btw, didnt read the controls in menu, but it feels kinda obvious so its cool.
Overall pretty good and solid game, well done!
(p.s. Music is groovy too)