Twinbee (Famicom) Japanese Packaging / Box Art Translation

Twinbee (Famicom) (1.4.86)

While the box art is utter madness, the game description on the back is as straightforward as it gets.

(Images taken from MobyGames.)

Front:

Two can play simultaneously!

Back:

By finding the bells that are hidden away inside the clouds, you'll power-up. Defeat the enemies which appear one after another, and take back the island.