So that's the basic game. There's plenty of space on the SAMD51 to add features. Some could be:

• scoring
• different colored posts
• make gravity increase over time (making it harder to stay aloft)
• add starting difficulty selection
• progress tracking, i.e. how many screen advances the player gets before colliding with a post
• dynamic posts that change height as they move

As you can see there are all sorts of additions that could be made. Have fun exploring the possibilities.