Just came out on XBLA today. It's basically 2.5D Metal Slug with genre-savvy humor. Playing it, I sometimes had moments where I felt like I was playing Mega Man, or Mario, or Gunstar Heroes, etc. The Metal Slug-ness is obvious but once in awhile something would just give me a similar feeling to another game (generally positive). The one-liners are mostly either funny or intentionally terrible, I imagine some of them will begin to get old over time though of course. The writing in the story bits are pretty amusing.

Comedic Trailer: http://www.youtube.com/watch?v=qjVQ0uTz-i0
footage of a couple levels: http://www.youtube.com/watch?v=pQPlue_MoeY

you can see some of the stage parodies of other games in that video.

I hate to bring up all the comparisons to other games, because this game is a solid title on it's own. But I figured that stuff would be the real attention grabbers. It's a fun game, give the demo a try.

Also when you beat a stage, you get to play Ragdoll Pachinko, which is exactly what it sounds like.