G5 Entertainment and Game Interface are running a competition with three prizes of (codes for) the PSP game Mahjongg Artifacts: Chapter 2 on offer. Two prizes will be given away on their website and one is a twitter comp (ie retweet-to-get-entry style of give away).
To get entry to win by tweeting, all you have to do is tweet the following message:
Want to win a PSP Game by @G5games? Visit http://bit.ly/9YQn8d to win #GIPSP RT & Follow @gameinterface for a chance as well
To win by posting comments on the site is a bit more involved. Details are on the GameInterface site. This may be the best way to win. Because it is a bit more involved, fewer people are going to be bothered to do it. The retweet - if you have a Twitter account is super easy. So many more people are likely to enter to win this way - but maybe not!
As of writing this post only 15 tweets have been posted. So maybe there is a good chance of winning through retweets, as well. On the other hand, the comp was only announced today! Whichever way you choose - good luck!