Very impressive for a first game! Funny combination of cute and morbid. Some music and more sound effects would've improved the experience.
The dialogue was too slow, the "hold z" should've made it much, much faster. The dialogue was also buggy. Often I had to press Z while walking towards the character several times before the dialogue started. Other times, when holding Z to speed it up and the dialogue ended, it would immediately start over.
Overall, great job for a first game! Keep at it!