That's it ... a New demo is out for 2.81 user. It's the Ape Escape Racer Demo. I uploaded it on rapidshare for your pleasure !
Here is the link : http://rapidshare.de/files/34456232/EBOOT.PBP
Mirror 1: http://www.megaupload.com/?d=8LYYOYNA
Mirror 2: http://download.yousendit.com/6E925E9A27983C85
I can guarantee this will not brick ur psp ! To make this demo works put in in : file:/psp/game/UCUS98655 and drop the Eboot.PBP in that folder ! It's a really good demo but there is only one track. The game look and play a lot like mario kart.
The controls are :
Square : Brake
Circle : Use power-up/weapon
Triangle : Horn
L+R : Kinda like a rocket mode ... you become more aerodynamics, you go faster but you can't really turn ... must hold it to stay in that "shape"
P.s. I'm new here but got more than 700 post on PSU you can trust me