I found an annoying bug in the 'Tetroid' game from Grip Games' 5-In-1 Arcade Hits.
I'm playing single player 'Tetroid' on the PSPgo and suddenly the ball gets stuck underneath four rows of bricks I was hoping to demolish by squeezing the ball in between the lowest row and bottom screen. Then the game just froze. I tried to turn the game off after a while (2 minutes), but it won't shut down. There's just a black screen with a buzzing sound whilst the background music from the game keeps playing. This has been going on for 30 minutes already. On a PSPgo it's not really possible to remove the battery in an easy way I suspect so now I'm looking at a PSPgo that is making annoying noises and can't be used until the battery runs dry.
It's such a severe bug that I don't feel inclined to play the game again, at least not until this major bug has been fixed.