[Igame]

I'm making a Space Invader rip off. And, I have 16 classes. Is that too much? Should I cut on some?

Well compare it to most games this is quite small

[andrei042795]

Would you mind sharing the source once its ready? Im very interested in game programming.
Thanks and good job :)

[randomKID]

I noticed you have several entities that are essentially the same but have specific differences. I would suggest creating something like "Entity" and other superclasses that you can subclass to all your Entity classes. That way, you don't need to copy/paste code for each of your entities. Something like a isColliding(...) and move(...) and all that in your super class and then extend it to all your specific entities/NPCs. If anything, make more!

[Colby_]

I definitely would not make separate classes for entities/npcs etc. That is very bad practice. I assume you're looking at minecraft's design for that, which is a bad idea. What if you have thousands of NPCs? I'm not saying you have too many classes.