Well, let me go through each genre and lets see what I can get.
Rythm: Honestly. Guitar Hero. Was it fun when I started? Yeah. But eventually you could just feel them starting to give up when they went with specialized games (Metallica/Band Hero/Aerosmith)
Platformer: How about we look at a TON of unknown NES games. McKids is pretty **** horrid. Just annoying and clunky.
Top Down: Silver Surfer. I downloaded it as a ROM. And you know the infamous Angry Video Game Nerd episode where he reviewed this game? Yes it is SERIOUSLY all that. Its impossible to beat a single level. This is almost tied with Back to the Future.
Flight Simulator: Top Gun NES. Just due to landing. Its physically impossible to land that mofo.
Beat 'Em Up: You know I dunno. Double Dragon 2 was alright, TMNT ranks pretty low (The OG NES version.) but that's more platformer than anything.
FPS: Fracture. Its a prime example of how to take something that has a TON of potential to be AMAZING (Grenades that can make stone columns or bring the ground down to make cover and kill enemys? Can you say hell yes?) Then just make it so lack luster and boring. The enemies were stupid easy (Not to mention downright stupid) The puzzles presented were dumb; and it was just not fun.
Survival Horror: F.E.A.R **** you.