(This is a snap judgement "review", so this doesn't necessarily reflect my thoughts on the entire game)
So, I tried a Roadkill run on easy, and got a couple stages in, then found out I couldn't beat the game on easy for whatever reason. Oh well, I just restart on medium and chose Twister instead.
I genuinely couldn't get past the first stage with them OR Roadkill after I gave him a shot again, and with the proper strategy i found out. I was getting really annoyed, then I decided to try out Warthog and see how far I could get. Got to stage two after losing a life on the first, and I was feeling pretty confident.
Theeeeeeeeen I lost my two remaining lives and got a game over. And since there's no continue system, back to square one on the title screen. I promptly said "screw this" and decided not to continue the game any longer for the sake of it and my own patience.
TLDR; AI is really damn hard and the game doesn't let me beat it on easy even tho the first one did. Ugh.