To be honest, I wasn't a big fan of the first 3 games. They weren't bad, just not my favorites, but this one I'm really enjoying. Only problem I have is melee seems next to useless in most maps, either due to bad terrain or too many flying waves to make them useful, at least in my opinion. Other than that it's excellent.
Was fun for awhile, then I got to the third boss. Can deal with the dazing and blindness fine, and even interrupt gutrip every time and he still tears me apart. Not worth the frustration.
 "Protector IV"){kind=icon}
 "Bunny Invasion 2"){kind=icon}
 "Mechanical Commando"){kind=icon}
 "Talesworth Arena: Death Watch"){kind=icon}