Posted: Jan 20, 2012 12:27 am
I'm glad you mentioned Metal Storm as it is one of my all-time favourite games. Super Dodge Ball is also a great title and if you enjoy it I'd also suggest playing River City Ransom, which is another entry in the Kunio-kun series developed by Technos. There are many other sports-related games in that series including soccer, hockey, and basketball. From the selections you've mentioned I'll assume that you like games where you can blow things up - if that's the case you might be interested by Abarenbou Tengu, the localized version was named Zombie Nation. There are slight differences between versions - it's up to you if you'd rather play as a disembodied samurai head (Zombie Nation) or a disembodied tengu head - either way you get to spit projectiles at buildings and helicopters and in Abarenbou Tengu you even get to take on the Statue of Liberty.
Summer Carnival '92 Recca is probably the best shoot-em-up for the console - it's definetly the fastest and it has the wildest hardcore acid-techno soundtrack of any game from its era. Uchuu Keibitai SDF, Crisis Force, Over Horizon, and Gun Nac are also top notch shooters.
Based on the selections you mentioned I also feel compelled to recommend Little Samson, Gimmick, Shatterhand, Kage, and Gun Dec to you. If you're more inclined to play a puzzle game - Fire 'n Ice and Dr. Mario are the two best titles for the console.