4/5 One of the better and more challenging flash shooters out there. Colour-blind friendly is nice, but I couldn't really tell whether the bullets on-screen were mine or not. Also, some achievements are absurd (I didn't need to die 32 times thanks) and the final boss, while not that hard, is a pretty large difficulty spike over the previous levels.
Yeah, about one of your awards, I got "15x combo without Nanoswarm's help" with Nanoswarm's help. wut.
Otherwise this is as good as the very first game (my favouite until), although they are almost completely different in terms of upgrades and bosses and stuff. I liked Kitty's simplicity but I like Ice Cream's complexity (like the map and the enemies).
Tip: To get high chains and high scores, avoid leveling up. Leveling up only makes you more likely to get hit or die. Instead, move as little as possible thus avoiding pixelgrabbing, get a shield powerup, damage upgrades and point upgrades after that (if you're scoring) and spam bullets.
I still prefer Robot Wants Kitty, simply because of the fact you don't have to risk your life an absurd amount of times just to access another room. Seriously, I died 5 times more than I did in the first game and I'm not even halfway through yet.