A fairly fun game. It's more of a good time waster than anything since both hard and easy are quite to be honest, simple. I completed both sides and I had fun with this game though.
The cons with this game are obvious though.
-When engaging huge amounts of enemies, I think someone mentioned all the bullets they fired kind of made it very "hard" to even see your own ship, so avoiding is somewhat difficult, though I don't know if that was intended.
-I don't know if the difficulty determines this but I quite never understood as to how I die sometimes. On Hard, normally, the big bullets would just graze me, but than the smallest bullet would kill me. On Easy it was somewhat the same but even with full shield I somehow die.
-The perks weren't at all that beneficial. The only ones I really appreciated were 5 lifes, X2 and the Homing Missiles. Everything else was just not usable.
The pros
-Easy understanding of the game, a 4 year old can understand the concept.
-You showed us highlighted lines of where the enemies were too appear, so it help us prepare for the oncoming wave.
-Interesting model designs for all the spacecraft.
-Game got increasingly harder.
-Very colorful game and I loved the backgrounds and 3-D models, I think it was a nice touch.
Very good game, hope you have more interesting ideas for the future.