Play Thundercade / Twin Formation Online

Thundercade, also known as Twin Formation, is a 1987 arcade game from Seta Corporation. It came out during a time when vertical shooters were common, and it fits right into that style without trying to reinvent the wheel. You control a helicopter, and the goal is straightforward: survive as long as you can while taking down enemy vehicles and structures.

You pilot a helicopter that moves with a certain weight, making dodging feel deliberate rather than twitchy. The main objective is to clear each screen of enemies while avoiding their fire; you can collect power-ups that change your weapons, including options for a second player to join in formation. The pacing is relentless, with enemies swarming from all directions almost immediately, and the difficulty ramps up quickly. It feels tense and chaotic, especially when the screen gets crowded with bullets and explosions.