Who is this character from a Dragon Ball videogame? The one in the right. I can read the first word in japanese says Vegita but I can't understand the rest
べジータたちをたおせ (Be-ji-i-ta-ta-chi-o ta-o-se), which means "Defeat Vegita and his comrades".

By the appearance of SSJ3 Vegeta and Nappa, it's from the game Dragon Ball Heroes, a Japanese arcade game developed by Dimps, which they have developed a lot of popular anime video games.