Hello Kitty Island Adventure takes place on an island inhabited by
Sanrio characters. The gameplay involves adventuring and puzzle solving, with new areas being added regularly. The quests involve 3D platforming with occasional puzzles, with many new quests unlocked by becoming better friends with the Sanrio characters. Optional quests include platform time attacks, house furnishing, and photographing
Gudetama. The game includes 18 Sanrio characters. Most are well known characters appearing in the Sanrio Character Rankings like
Hello Kitty,
Kuromi, and
Cinnamoroll. But it also includes the rarely seen crocodile character
Big Challenges, originally from 1978. There is also an original character called Tophat who was created for the game. == Development ==