Good entertaining game

Good graphics, controls are fine, kept me amused for quite a while to get the high score!

Niggles:
Music is a bit repetitive
You need to use a spellchecker!
Weapons could do with more than one upgrade (along with increasing the health of enemies)
Your ship shouldn't fire the main drive to move backwards (I'm being picky here!)
Consider limiting the number of enemies sent from 'boss' ships, otherwise you can disable their guns and just shoot the little ships forever - well, at least until you get really bored.

A game I'll play again, normal mode was challenging enough - I wonder how difficult 'Hardcore' is...

Yours,
Tony Wilk

Nice Gameplay

nice gameplay, but the the level caching system sometimes annoying.
nice upgrading system, you should make some more upgrading option.

Nice graphics.

The graphics are nice, but that is about it. The weapons are boring, and the sound gets repetitive. Also, the written language is of very poor quality, hardly making sense at some points. If you could improve this, as well as explain why they didn't make the mother ship the same way they made the protector (indestructible as long as it is powered with energy), the game would be rather good.

More upgrades please!

There were some cool ideas in this game which makes it stand out from similar games however it would be nice to be able to upgrade components more than once.