A really fun Memetroidvania by Konami. It came after Aria of Sorrow and the game system is very similar, except that instead of Souls and they Spirits, and they're not randomly dropped.
You start with only 1 equippable spirit but eventually you get 4, 2 useable ones with L and R and 2 slots reserved for passive abilities, but nothing's stopping use to active slots for passive abilities too so have some meaningful customization choices.
The game may seem simple and shallow at first but it improves as the game goes on and the boss fights are good, especially if you want to learn them without using healing items.
There is a world map and there is some annoying backtracking mid way through but eventually you'll learn an ability which allows you to skip a level if it has already been completed.