Update:
various errors have been corrected,

Content:
Inventory works.
Currently, there is a single variety of "Potion" that the player can collect.
This is consumed automatically when the life energy falls below 20%.

The contents of the inventory are stored together with the game progress.

When restarting with the "continue" selection, the Inventory objects are set to the position of the
player so that they are put back into the inventory by picking them up.