We are the citizen police of Kongregate. You have committed a crime against the citizens. We will flag you and rate you 1 star until you make games that matter. Thank you.
Many possibilities for this.
1) Powerups that make big boom or straight laser with goal of killing as many seeds as possible
2) Powerball--ball itself is weapon, kills as many seeds in 2 seconds as possible.
Keep working, add intro screen and so forth. Good!
Good start!
1) Obvious stuff, keep fleshing out
2) Make change of perspective by shrinking/growing enemies and nano. Almost like making another game when you do that.
3) Along with change perspective, make speed options available. Like Phage, with speed and strength and others available for balance (or unbalanced) approach to game.
Great start.
Ungh! Why not take some time and get the balance right. First level should be one on one, not 4 on one. And why give ice to the enemy, and give the enemy all advanced weapons while I get a pea shooter.
 "MoneySeize"){kind=icon}
 "Do NOT Touch IT"){kind=icon}
 "Murray Missile Mayhem"){kind=icon}
 "Chill Lounge Idle"){kind=icon}
 "Invincible Shooter"){kind=icon}
 "TEST2"){kind=icon}
 "Anti-Virus Nanobot ALPHA"){kind=icon}
 "It's Snowing!"){kind=icon}
 "BEST GAME EVER!"){kind=icon}
 "Shootiry"){kind=icon}
 "MOX MR.johnsox5"){kind=icon}
 "Ultimate Defense 2"){kind=icon}
 "Armored War"){kind=icon}
 "MOX MR.johnsox2"){kind=icon}
 "Big Balloon Adventure Beta 1"){kind=icon}
 "Duck Hunt"){kind=icon}
 "Bugy"){kind=icon}
 "MOX MR.johnsox"){kind=icon}
 "Dragon Rider"){kind=icon}
 "Give me my D!"){kind=icon}