Everyone good with
Star Force - Arcade/Coin-Op
What about
Bagman - Arcade/Coin-Op for the arcade game.
@Ninja Gaiden. There are people here that have cleared it and still not come close to the world record. I assume a high score requires lots of point pressing and farming within the time limit which is not fun.
Take a look at
Dungeon Magic - Arcade/Coin-Op for the beat'em up.
I think
Lethal Enforcers 2: Gun Fighters - Sega Genesis is a decent suggestion to add an extra genre.
What about
Binary Land - Nintendo Entertainment System for the maze game?