I have no life :c - http://imgur.com/ZksOtAg. Really fun game except for the grind. The objectives were really straightforward and paced very well. Here are some general and specific tips: 1.) The hardest achievement was Agile Red because you can't just grind it out. You're going to have to start over a because sometimes barriers spawn where you enter, before your vision expands and there's nothing you can do about it. Dodging fireballs isn't too hard with some vision and agility upgrades but BEWARE OF BUGS. Lose vision and you don't even know if you even hit a barrier. The rest of the achievements can be completed with grind. 2.) For the speed-related tasks, use the H3 Wasp. It'll get you to 500M on red in 30 seconds. 3.) Cold Fire on the T4 turbo really helps, especially for grinding out that first 100 black technology to jump to the red planet. In combination with the B5 battery Turbo Charge, it can help you survive for a long time on the red planet.
Both fun and frustrating as hell. There needs to be a save or speed up feature so people don't have to go through the entire beginning of levels every try to get 3 stars.
First 2 levels: Sit in front of their spawn. 3rd to 9th levels: shoot 1 cannonball (and it) then sit in front of their spawn. 10th to 12th levels: Dodge and shoot.
I suggest toning down the first 3 levels so it'd be really hard to lose. Remove the max life loss feature so that people won't have to start over after trying and losing a round many times.
This is a beautiful game with addictive mechanics and a lovable art style but it has a some dire flaws. Firstly, the beginning is much too difficult for people to easily pick up the game. Also, losing a life a max life when losing a round isn't a good mechanic. It means people will have to restart if they lose too many max lives. If that happens at a later stage, they won't play the game again.
Thanks for the feedback.