#35- Future Cop: LAPD (PS1)
As guessed by Fox. Like I described it in my clue, it's a fantastic mix of part third-person-shooter; part RTS; part tower defence and to this day remains one of the most unique mixes of gameplay genres I've ever played. And that's only one mode, there's also a full single player campaign about the life of X1 Alpha, the LA crime-fighting robot, and a fantastic two-player option as well. Highly recommended.
Clue for my #34 - would probably be described as 'entertaining plagiarism' if it were being reviewed today, this main series spin-off is arguably regarded as being better than the rival entry in the series it was imitating.