Cave makes the same f*cking game over and over.  It's a very good game, don't get me wrong, but it wouldn't kill them to exercise some talent in addition to their skill.
Well the DoDonpachi games rely on a Chain system that's not in their other games.  I somewhat agree that they're games are similar but there are some subtleties that make them different.
Radiant Silvergun I always thought was good from the first day I bought it.  However I find the Chain System in that game much to be desired.  Mainly cause I'm not that good at the Chain System.  I can beat it without continuing on hard, but I'm not that good at chaining. I also feel it doesn't make the game more fun to play adding that style of gameplay no matter how much skill it takes to do.  It's a good game but I'd rather go play something like Layer Section or Soukyugurentai Terri Diver.  Hell or Spriggan haha.  Yes definitely Spriggan.
SuperDeadite I didn't know Video System's had anything to do with Dangun Feveron.  I thought it was all Cave?