Solid Snake in the Metal Gear series is much more exciting than Smash Bros. He has access to many strong weapons and is skilled in stealth and CQC.
It's weird how Snake goes from facing/defeating powerful war machines (like Metal Gear REXs and Gekko) and other powerful villains (like Vamp, Fortune, and Liquid Snake), to somehow being able to lose to Isabelle, a harmless little doggy, and Diddy Kong, a cute cartoon monkey.