Who should I call if I can't stop playing it? ;) Some suggestions:
- I can see that people are asking about new tracks. Maybe you could make a tool for adding additional songs to Apotris (in MOD format, for instance)
- rumble feature for flashcarts that support it
- any interesting ideas for new content? Some kind of challenges, bonus blocks (could be especially nice in multi), alternative pentomino shapes?
- have you ever considered creating a package of interesting block puzzle games for GBA in the future? With Apotris working so well... That would have been awesome for sure. Personally, I have great memories of playing Block Out for DOS as a kid, check it out:
And here's an arcade version:
BTW, is there a GitHub page for your project?
Keep up the great work!