Gamesack. I love that show. As for Lightgun games, I dont know why they are not as popular. At least if you have a Wii you can still play some.Its obvious it can still be done, just look at Time crisis on the PS4.
Ghost Squad is another one looking out for - and the Res Evil Chronicles games.There also Dead Space Extraction and even the Link Crossbow trainer game is worth a go as it has some really nice score attack modes.I liked HOTD2 on DC but HOTD2&3 on Wii is just more convenient.
Just a heads up if anyone is unaware of thesehttp://www.thegametrain.com/products/Playstation-2-Controllers/376-LCD-Topgun-(PlasmaProjectorLCDCRT-Light-Gun).html