Tester Phase One

Tester Phase One is a fast-paced vertically-scrolling space shooter, in which the player controls a spaceship and takes on endless waves of enemies. The player can shoot, but also has a reflect ability. When activated, this activates a shield around the ship that reflects any bullets back towards the enemies, but when depleted it takes a few seconds to recharge, leaving the player vulnerable once again. The player only has a single life to defeat as many enemies as possible.

The game features dozens of in-game "challenges" to complete, and also allows for selecting the game's starting stage. There is also an "auto reflect" mode for beginners, which will automatically trigger the reflect ability when available if the ship is hit, but challenges cannot be unlocked in this mode.