The Robocop connection should clue you into the sort of satirical tone that they were going for here, though it's even more cartoony and that's just fine, because it works! Don't expect some kind of big overarching narrative here though - each mission is basically its own little self-contained story. If there are any Monty Python fans out there, you're likely to get this one. There are even a few tongue in cheek references thrown in on occasion - when I played through the game as a kid it didn't mean anything to me when I was asked to rescue a besieged yacht named the "Throat Wobbler Mangrove" but replaying it as an adult I literally laughed out loud when I heard it.
The dialogue is campy and it clearly doesn't take itself very seriously, which I'm completely fine with. Nice! Each mission consists of you running (or hovering) around levels, obliterating a ludicrous number of enemies, and completing various objectives, culminating in a boss fight to complete the level. This one does at least have one advantage ol' ED didn't - it can transform into a hover car. You play as an unnamed cop, tasked with cleaning up the grimey crime-ridden streets of futuristic Los Angeles in a sweet totally-not-ED-209 robot. While not a commercial success, it went on to garner a cult following in the years to follow and for good reason - it's a damn fine game.
It was a blast 20+ years ago and it still holds up remarkably well.