I tooled through the Acme Arsenal demo today on the Xbox 360, because (1) I was watching a bunch of classic Looney Toons cartoons I downloaded through Xbox Live Marketplace, and (2) It was made with my company's tech.
It's a decent little platformer, though I wish it let you invert the X and Y axis. Note to game devs doing demos: If I'm going to evaluate your game, don't give me a reason to not play your demo.
If I can't invert controls, I normally don't bother with a demo -- Reason (2) was the only thing that kept me playing.
