Aw, no one played Base Wars?! I'll have to elaborate myself.

I can't remember if you're a baseball mang or not, Zorba, but it's a baseball game. Only picture this: all the times are entirely composed of androids. Beyond the normal, bipedal robot, there's a robot with different lower torsos - a unicycle wheel (think one-wheeled motorbike), tank treads, and a hoverbot. The game is played as normal, except when a runner arrives at a base where he would otherwise be tagged. Instead of being called out, the two robots fight it out. If the runner wins, he's safe and can keep running. If he loses, he's out.

The game supports several pre-made teams, two custom ones, two-player multiplayer and a season mode where you can trade for, upgrade and purchase new gear (extendo-fists, laser guns, techno-swords...) for your team.

Aaand it's on the NES.