As you saw in my comment on the stage rankings I either love or hate space themes based on how they are done, In Banana blitzs' case I love it. Granted I think Pirates Ocean had the best music so far. I do actually quite like the way the world looks. However, this world highlights banana blitzs' chief problem which is in constant difficulty.
The game is controversial because this is where the series started to decline in difficulty (and therefore quality) The first 2 games and the GBA port were hard as nails. This game is much easier than those 3. They don’t let you jump and had no guardrails outside of beginner.