great concept but it lacks in many areas
quality h/m/l
sound split into (music/effects)
difficulty eg easy norm hard you could use the stars in a different way like the higher the difficulty the more stars instead of no loss of lives

suggestions

lvl editor or creator... even a random generator

trading in stars you can buy stun or bomb

need a sertain amount of stars to play a lvl

having the ability to buy a different gun with different effects and stats
eg. rail gun 200 damage 0.5 fire rate 300 radius?
or sniper, dual cannon(fires at furthest and closest target?)
tactics eg. defensive(attack closest enemy to objective)
advanced(attack sme enemy tareted by other turrets)
aggresive(random slection)
detective(doesnt shoot targeted enemy unless no other to fire upon)

touch screen application?

speed
|> slow,
|>|>moderate,
|>|>|>fast,

It is a nice game, but way to easy. Just stacking the "+damage" and "bonusrate after switching" on the rockets and its done.
Also the turrets did not feel quite unique. They were just there to deal damage and rockets just did best of them. It lacks on something like tactic, which makes it just a short game... It still was fun, whatsoever ^^

not bad, nice and fast paced, a bit to fast though, perhaps for a continuous TD you should slow it a little bit or atleast drop the Cooldowns on the big abilities earlier on, but other than that, good work

Nice TD game. The part "mouse controlled" is half true. I think the concept would also fit at my tablet. You just have to move the torrents to the right place. Sounds like the perfect game for my Tablet...
Some little special wishes at my side: The transporter Ships go under in the mass attack phases. Maybe you can highlight it a bit more? 7 nice levels are nice... but not perfect. There are moments where more is more. Overall: good game, only short but very addicting.

too short, but very addicting.