Yongzhe Paopao Long 4

After the last game stuck to a more conservative take on the Bubble Bobble formula, Yongzhe Paopao Long 4 experiments with a more open design. Players start in an open hub world, which is a long sidescrolling level that can be explored freely. Doors throughout this level lead to individual worlds, which are played through as a series of single-screen stages like in the previous games.