Complex sentence: It has made several appearances since, including in the video game "Super Smash Bros. Melee", and it was prominently featured in the theatrical anime film "Pokémon The Movie 2000" as a central character to the plot.
Split into simpler sentences: It has made several appearances since, including in the video game "Super Smash Bros. Melee". It appears prominently in the anime film "Pokémon The Movie 2000" as a character central to the plot.