I agree with you that the weapons system isn't top notch. Best weapon in the game would be the flamethrower... It simply gets the most done.. the strafing system, it's the only game where i've seen strafing work so well. This game is nothing short of amazing.
Just look at this screenshot
or even this
This game, beneath the terrible chippy sound curse of the gameboy advance, is gold. Actually there's one song that goes "let me show you how it's done" over and over with a guitar.. that's the best song in the game. This is nothing compared to anything harshly extreme like Cory Hart's Sunglasses at Night or Mr. Mister's Broken Wings, but in any case, this game focuses on gameplay, defending the rights of smokers, and something about getting vengeance for Vinnie. It's a deep quest, and a time attack would be fun.