When I distribute my app, is it possible for it to be approved by apple when not complete, maybe with reduced levels. Once I add more levels, I release another update? Would apple approve my app with reduced levels, or would they say ot enough content.
App Store distribution question
Is it possible? Sure. It's always possible for Apple to approve an app as long as it complies with all Developer and App Review requirements.
If you add new features, then you'll need to release an update.
If you're concerned that your app might not have enough real functionality, then your judgement might be sound.