I'll just add that achievements are nice for other things than provide additional challenges too. They are time markers for when a level was cleared, or a stage, or a boss killed. Which I personally have found fun to have when discussing when this or that happened, or when checking how long ago one played a game etc. A side note!

I'm working on some other updates first, but would like to add achievements at some point later this year! Any achievements you'd like to see in the game, other than the ones that mark your progress?

You can mess around with the cubes by chucking them into the distance, make them come towards you when pressing a button, and make them rotate using the joystick. It's pretty simple and yet I can't think of any creative achievements off the top of my head.

I would love to see this too. Some ideas:

One for correctly filling out the title with blocks. Perhaps one for completing puzzles within a certain time. Maybe one for creating a fun shape in certain puzzles.