Nice. Quite tricky and some easier levels may be useful for those struggling. I would have prefered a full screen version to be a bit more immersed r did I miss a button? And a more obvious petrol guage preferably colored as running out. Good stuff
Getting someone to play and actually watching them is very useful indeed. With hours of testing you can get very good at a game and what you think is easy isnt for beginners! It can also show what you know in your head but have not explained to the player clearly enough. Good stuff.