Explore a 3D environment with first-person navigation. Interact with objects by picking them up, throwing, and examining. Perform actions like jumping and crouching. Solve puzzles, unlock doors, and collect .
Solve puzzles to progress through levels. Use the Master Key to unlock doors and advance floors. Complete challenges to unlock rewards. Track progress and compete for top rankings.
Navigate through periods to solve puzzles and progress through the story. Use hints when stuck and auto-save progress. Switch between English and Japanese language settings.
Use items found in a tapioca shop to solve puzzles and progress through rooms. Unlock clues by combining objects. Navigate through different areas to escape the shop.