I like the generic idea, but right now it feels a bit too tiring, waiting for that specific solution to happen, etc. It could definitely work as some kind of "one trick pony" with multiple screens, each having its own unique mechanic or approach. One more thing (graphical) design wise: I would consider it better for pixel sizes to be uniform. Go with the classic 70's look. But don't mix in higher resolution text. I could even imagine this with more simple 8-bit style sound effects (although this might be tricky to get it right).