Level 45 : grab the slider shots and use them to get the brain. Then you have to time the shots to deviate the zombies upwards. The slider shots are much more powerful than standard shots, and if you get to hit the zombies at mid course, they will fly way above the girls. You should also destroy the standard zombies directly.
The guide i used for beating hard mode :
1. Main Gun: 2xDmg, 2xFireRate ... 2. Main Gun: Max Dmg -> OneHitKill smallest Enemies ... 3. Repair Drones: 2xMaxDrones, 1xDroneRepair ... 4. Main Gun: MaxRate -> Zilch everything ... 5. Repair Drones: Max MaxDrones, Drone Repair Level 4, Repair Rate Level 2 ... 6. Get 6 Laser Turrets, 3xmiddle, 3xright of middle -> they don't take much dmg on these positions ... 7. Max out the 3 center lasers
For supereggs location, be aware that most of them are not always located on the same level. Rather, they are linked to a certain part of landscape that can be placed in most levels, including speedruns.
Anyone got a hint on a speedrun or level with lots of birds to eat ? It seems this gold milestone will take hours to complete while all others are done for a long time.
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