My retro-gaming buddy came over today and we just finished up about 6 hours of nerdtastic game-playing. Probably would've lasted longer, but his clingy wife needed some 'quality time'... So, we played:
Downtown Nekketsu Monogatari (PCE) - played and beat the hell out of this game! Even despite the crazy difficulty level!
Super Dodge Ball (NeoGeo) - fun game, but I think that the NES one is slightly better.
D&D: Shadow over Mystara (Arcade) - spent quite a bit of time on this one until my buddy had to leave. Great game!