|“||This is like realizing you're outside without your clothes on!||„|
Booster is a minor antagonist in the game Mario RPG: Legend of the 7 Stars, serving as the foremost antagonist in the fourth Star Piece arc.
Booster is a dwarf-like human with a very thick beard, which is black. He wears a red hat and has a red nose.
Eventually, Mario, Mallow, Geno and Bowser arrive to rescue Toadstool. Once they reach the top of the tower, Booster runs off with Toadstool and brings her to Marrymore, where he intends to marry her. Booster is given a wedding cake called Bundt by Chef Torte, but once Mario and company crash the wedding, the cake is revealed to be alive. As Mario is finishing Bundt off, Booster decides to eat it and head back to his tower, implying that he was more interested in getting a big cake rather than actually getting married.
In the end of the game, he winds up falling in love with Valentina. In the pre-credits sequence, the two are seen getting married. However, Booster seems to have second thoughts and decides to flee.
Booster is a demented and childish man who appears to be very naive and unintelligent. He seems to not be entirely villainous at heart, as he seems to prefer having fun and entertainment. However, he can get more dangerous when people are trying to ruin his fun, such as when Mario tried to rescue Princess Toadstoll and stop his wedding.
- He seems to be one of many Boosters in his family, the seventh to be exact.