Played through it last year, solid game. Would be a 7 or 8 from me depending on how long I think about it. I'd have changed some of the designs for the encounters and balancing for the pin types because certain pins would just be dead against particular enemy groups a lot of the time. Final boss was really cool overall but really marred by camera issues.
I jammed to this often while playing:
https://www.youtube.com/watch?v=X0SyWfpz1Fc
move all remaining groundhog mercenaries to the front lines. Have sheep troopers squadrons A and B flank the cows. They're using DC-17 hoof blasters.