Twin Power is a mid-2000s flash game developed by "Toonami", where obstacles need to be dodged and eliminated by shooting from a spacecraft.
Although Flash was discontinued on January 12 2021, Twin Power is still playable through BlueMaxima’s Flashpoint.
Spacecraft[]
The spacecraft can be in "attack mode" or "target mode", between which is switched using the "M" button according to the in-game manual, but any of the letters ZXCVBN (lowest row on keyboard) works as well.
In "attack mode", the spacecraft shoots straight in frontal direction. When upgraded, smaller ammunitions are fired to the back side to provide some protection against attacks from the rear. In "target mode", bombs are dropped down to protect against hostile rockets from the bottom. When upgraded, ammunition rockets that sound somewhat like fireworks are shot in front direction to attack a wider surface.
Shooting speed in "attack mode" is only limited by how fast the space bar button can be pressed in succession. If held down, it will shoot at a fixed speed lower than what is possible with individual presses. In "target mode", shooting speed is constant regardless of whether pressed repeatedly or held down.
To upgrade the strength of each mode, the spacecraft needs to collect blue or orange chips respectively. Each can be upgraded to up to five levels, and both are at strength 2/5 at the beginning. A special larger and more circular-shaped chip which alternates between both of these colours allows the space craft to be in both modes simultaneously for ten seconds, hence "twin power". A background voice announces "power up!".
Gameplay[]
The spacecraft is controlled with the arrow keys; ammunition is shot with the space bar.
If the spacecraft collides with a hazard, all power-ups will be lost and the collected chips are released in the air, and one of three extra lives are lost. The player needs to try to recollect as many chips as possible to regain strength.
At the end of each level, there is a final boss which shoots out hazardous small dots that need to be dodged, as those are immune against the spaceship's laser and rocket attacks.