Anime/cartoon where a kid has to save his grandma that turned to stone, and has to save her by getting all the "types" of creatures which help him fight.
Possibly Chaechaepong Kimchipong, a 2002 Korean anime, as per my answer to Old cartoon where villain turns villagers into statues.
In the most peaceful village on Earth, Singleland, a boy named Tochi lives a normal life with his grandmother. One day, all the creatures that lived in their land are suddenly petrified, leaving Tochi as the lone survivor.
Bewildered and frightened, Tochi meets a travelling little witch named Milo who informs him that what happened to his village, and many other villages including her own was due to the curse of the Black Mage Army. She reveals that he wasn't petrified because he had the magical Kimchi Stalks, therefore she gives him the "Chae Chong", a summoning tool, which only the person with Kimchi Stal can own. The "Chae Chong" can summon a Kimchi Pong when you put a Kimchi Stall, a powerful magical creature, which they use to fight the Black Army.
The grandmother turned to stone is here, as is the "collect monsters and use them ot fight" trope, and the earlier question mentions the main character lifting the curse:
They defeat the main villain and turns all the villagers back to normal, there is a girl too that tags along with him...