Okay, I update game just s second a go. I swapped place of some of the levels. Former 2nd level is now last one - That was quite hard one. And I added new much easyer level to 2nd levels place. Levels III and IV are pretty hard still. I added minimap to ease things little. I think I'll need to fix that later, im not completely happy with it.
Thanks for comments - I think i'll need to add more levels beetween 1 and 2 to smooth learning curve. I also tested minimap but I wasent satisfied with it so i didnt include it to the release. I'll try to add new levels and minimap later today.
Theres minor bugs (sorry!) but I was forced to post it now because of the unity game competition deadline. Updates coming soon :)