Tower Defense

Tower Defense.

The currency is "matter" and "antimatter".
The only way to obtain antimatter (AM) is to buy an AM Generator tower.
Click once on a tower on the right to buy. Click the menu to return to the buy screen.
Press the spawn button to generate new enemies.
Press p to pause/resume.

Credits:
Designed the map after Ninto's.
Thanks to Ninto for the awesome blast animation! (Tell me if you don't want me to use it.)

Currently, nothing happens if you lose.
Update 2/1 : new towers
2/3: Many towers fixed.
2/4: Took down faulty towers.
2/5: Towers more balanced. Damage can be seen.
2/6: More balances. "_" in names fixed. Tracking towers up!
2/7: Deselect button added.
2/9: Enemy data up when you press spawn. Laser tower price drop.
2/10: UI updates. Tips section added! New purple background. Awesome Pause animation.
2/12: Working on new Enemies. Fire tower bug fix. Stun bug fix. Fire bug fix. Star animation. Options added.
2/13: Version number to keep track of versions. Timer added. Sell button.
2/14: Ice + Stun bug fix. More options. Game Over animation. Virus towers.
2/15: Added lag control. Go to options to turn it on.
2/16: Bomb towers! Electric towers!
2/17: Electric tower bug fixes.
2/18: More tips shown.
2/19: Purple robots! Wave generation is random. (This probably isn't fair.)
2/26: New Enemies! Tell me if these are a bit too strong.
2/28: Updated the text in the textbox.

Comments are appreciated! =)