Introducing two new types of boss turrets! 

• The long-barreled Sniper pauses between individual shots, but the projectiles themselves travel much more quickly than the standard Cannon.  It's probably a good idea to move and stick when the enemy pulls these out.  You might need to back away from individual shots.
• The dual-barreled Flakker fires barrages of shots in short bursts, but aims slowly.   If the enemy is faster than you, try suddenly reversing direction between bursts!

How am I doing?  Is it a game yet?  If there's a feature you'd like to see included, go ahead and ask in this forum thread!