Lost planet was a nice idea.. all that Manga Stuff entangled in Gundam /Armored Core / Heavy Machinery fighting was actually fun.. getting a big gatling and blasting ones way out of a horde of Monsters was cool.. Lost Planet topped it with bigger Monsters and even more quick and fast combat. you needed to be clever, quick and witty to take out the big Acrids.
Lost planet 3 ist somehow the "retro"- version of the other parts. Telling the story of the World before it was settled..Nice idea BUT.. The fights are clumsy, the RIG (the old version of the Battle robots) are slow, MORE clumsy and boring. the world feels strickly linear, and getting from a to b is a pain the the you-know-what, even after fasttravel is enabled later it's still boring as hell to move your rig out of the hangar and "go" to the place where you can jump to the next place..
all in all a quite boring piece of boring history, rarely spiced and repetitive to the bone.. the story is quick, but sometimes the plotholes are eating up the fun.. and well.. "fighting" in the Rig is NOT as fun as it was with the "old" (New) Rigs..