The game is very nice. It has a simple concept but has the potential to be a really challenging puzzle game.
Unluclily, levels 22-25 are really disappointing. Too much simple IMHO. You should add some other hard levels.
For this reason I downvote from 5 to 3.
Ok, the graphic is ok and the memory leak disappeared... now, after 8 games, I think you COULD add some excitement. I mean, the levels are TOO easy, and also finding the stars is too much simple. You should add some new mechanic and make some serious hard level, maybe optional for "hardcore" players. If you release other games like this, I assure you I undervote them only for the fact you're wasting my time hoping a potentially good product remains a potential and nothing more.
Too easy and repetitive. Basic strategy is to collect bonuses, build a basic defence and construct a lot of Reactors and Speeds. When you are full of energy, Mortars and you win.
Simple but nice game. PS: game developers, please STOP to force us to redo campaign 99 times before accessing the hardest level. At least I hope your girlfriends do the same with you.
Levels are not much complicated. I'd prefer more levels as "Slide" at "The Cave". Furthermore I have not get all stars and I can't find where I have missed them... anyway one of my flash favorite games :)