Not the type you think. Not first person shooters like Doom and Quake.....
I started playing Ikaruga today and i have to say it has brought back some memories of these types of games that i used to play along time ago when i was younger.
Major Stryker:
I used to play this one on my grandfather's 286, its graphics were only EGA and were quite horrible lol, i remember finishing the entire game many times over. Back then even my dad was into games and used to take turns with me :)
http://www.youtube.com/watch?v=BpwhBwxAH9Q
Raptor:
Shortly after we got our own first pc.... It was a 486 with 8mb's of ram, really pitiful by these days standards but here is another shoot em up i used to enjoy.
http://www.youtube.com/watch?v=2gu5k6jLZzg
Tyrian:
Published by Epic mega games in 1995 this is one that i played with quite a few family members battling for high scores.
http://www.youtube.com/watch?v=tQdu4NsWU4Y
Maybe not the Hardcore japanese shoot em up's that some of you guy's probably know, i remember playing one of the gradius games once but i forget which one it was, i think it was on the original playstation, but i didnt play it much.
I dont know whats a better option: To buy Ikaruga for Dreamcast and pay 50gbp for it, or get the gamecube version for a little less brand new in its shrink, or wait and see if it comes out on US/Europe XBLA like it is in japan.