TwinBee Portable

The series centers around a blue bee-shaped anthropomorphic spacecraft named TwinBee, who is usually accompanied by a pink "female" counterpart known as WinBee. In most games, the first player controls TwinBee while WinBee is controlled by the second player. A third ship also exists named GwinBee, a green counterpart to TwinBee and WinBee who in most games serves as a power-up, but in some instances also appear as a third playable spacecraft. In contrast to the serious sci-fi theme of Konami's Gradius series, the TwinBee series is set in a cartoon-like world featuring several kinds of anthropomorphic creatures in addition to regular human characters.

The player controls their spacecraft in most games shooting or punching at airborne enemies while throwing bombs at enemies on the ground, similarly to Namco's Xevious. The main power-ups in the TwinBee are yellow bells that the player can uncover by shooting at the floating clouds. The player must shoot these bells to keep them afloat and after shooting them a number of times, they will change colour, allowing the player to add new abilities to their spacecraft.