I recently rewatched the first one with fond memories, having forgotten just how bad the script and pacing were. And fundamental logic.
Hard to enjoy a film when your mind won't stop screaming "THAT JUST DOESN'T MAKE SENSE! D:"
Magic would be fine, laserguns, sure, I love giant robots - I adore zombies - but why the lasers, why the god damn flying laser defense-fence, why dive through windows or install nerve gas in the shower.