 In 2007 , Harmonix and MTV Games released a new music title through rival publisher Electronic Arts , called Rock Band . It expanded upon the gameplay popularized by the Guitar Hero series by adding drum and microphone instruments , allowing players to simulate playing songs as bands . Activision followed suit with the release of Guitar Hero World Tour in 2008 , which supported multiple instruments . In 2009 , Activision <unk> its Guitar Hero offerings , and in addition to further continuation of the existing main series with Guitar Hero 5 and expansions , they introduced the titles Band Hero , geared towards more family @-@ friendly pop music , and DJ Hero , a game based on <unk> and featuring a number of mixes . With the release of Guitar Hero 5 , Activision considered the series to have moved away from its heavy metal basis into a broader selection of music . Guitar Hero 5 is the first game in the series to use a new version of the series ' logo ; previous games used a logo in a font with sharper " points " on the letters , which was considered " idiosyncratic with a vengeance " to match the games ' emphasis on heavy metal music . Activision used the services of the Pentagram design studio to <unk> the game 's logo . Pentagram developed a new font , removing some of the " aggressive odd " features to make the <unk> more suitable and <unk> to design feature incorporation to other games such as Band Hero and DJ Hero . 
