Suggestion: A buy max option. That way you don't have to mega click on things or round to the nearest whole unit. Just lets you buy as many as you can afford.
If you place a wall just right in the caves of trial, it will push the enemy back. It worked so far with trial 4 (put your cursor right over his forward knee), and on trial 5, put it directly on top of her.
I can't figure out what I missed. I have a complete bestiary, purchased everything that can be bought, and opened every chest I could find. Help on the "Gotta Kill Em All" badge please?
 "Trimps"){kind=icon}
 "Turbo Golf"){kind=icon}
 "Epic War 5"){kind=icon}
 "Epic War 4"){kind=icon}
 "MegaDrill"){kind=icon}
 "Epic War 3"){kind=icon}
 "RetroShoot"){kind=icon}
 "Super Crazy Baseball Maniac Deluxe"){kind=icon}
 "Polygonal Fury"){kind=icon}
 "Hero's Arms"){kind=icon}
 "Fruit Mania"){kind=icon}