Snot -ah the arts of linkbuilding hay - well there are a few things id say to you...
there are gradients the quality of a link -- these are basic kind of principles tht the google rotates of right.. combination of words... so when you say pages mention you - thats called LSI - latent samantic indexing or something like that -it goes of the pagerank algo i think and picks up sentence level/ paragraph level combinations of words... But if they were to anchor thext where they have mentioned you - thats a link and thus defines that whole paragraph where as your word was just a part of it before...
moving on - the link form your forums - althought plentyfull - is one IP address, on subdomain forums this could have more weight if your posts were in sepate subdoms. but essentially they are small and weak.
Now if you want your site to rank for something like flash games, your going up against some competition, even media frim - like fox etc - but yea you could get there - anchor text up (but keep it orgaic) the key words you want is various places around the web - as vairous places have various strenghts and properties, the variety and spread of links will ensure you rank - and if it gets tough at the top - mix up your anchor text footprint to catch long tail searches....
DCx 
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