Sorry For Such A Late Reply, I Didn`t Notice Your Message.
I Will Think About Making Less Enemies, Especially Because I Made Most Towers Have Less Penetration And Crowds Of Enemies Are Hard To Defend Against. The "F.A.S.T Ford" Buffs Do Not Stack, I Don`t Feel Like Making Them Stack And It Would Be WAAAYYY Too OP, Imagine If You Put Down Like 7 Of Them And The Tower Never Stopped Shooting And Had Like 17x Damage And Made Like 175$ Every 3 Seconds. As For The Best Tower, I Would Say The Newly Buffed Nail Thrower Is Best For Early Game And Stuff With A Lot Of Pierce Like Laser Gunner And Lighter(AKA Wizard) Are The Best For Late Game.