Obligatory space world ahoy! I say "ahoy" as the final boss is waiting after clearing the difficult Clock Tower Factory-worthy stages. Space Case sets itself apart from previous space themes by being a lively, neon-covered utopia... in space. It's a great locale to look at and the music is very cheery for this point in the game.
The song is a remix of World 9 of Touch & Roll: Big Bang Boom, another space world with a nebulous background and stars shooting all around. (Actually, Touch & Roll has THREE space-themed worlds.) A bit of a downgrade, but it still retains space-level toughness.
SEGA and Amusement Vision own these banana-loving monkeys.