Monster Kid X

Monster Kid X is a Japanese superhero action-comedy kaiju anime television series co-created by Toho Animation and Toei Animation. It is based of the original Monster Kid series.

Plot
The anime follows the adventures of Max Stewart gets exposed to a chemical called the G-Energy Compound on international television, altering his DNA and giving him the abiltiy to transform into giant monsters, becoming a superhero name Monster Kid. With the help of his friends and family, Max protects his city and the Earth from various threats like Gold Vulture, Mister Z, Chrome King, Overmind, Solace and Dr. Whirlwind, Eventually, Max fights to defend his planet and the entire universe from his greatest enemy, Zero.