Over Horizon - The Arcade Game How to play Controls D-pad: Moves the player ship. A: Shoots forwards. Hold for autofire. B: Shoots backwards. Hold for autofire. A + B: Changes the positions of the player ship's options. Hold to continuously change the positions. Start: Pauses the game. Items Power boost chips: The order of the power boost chips alternates repeatedly between L (laser), H (homing) and B (bomber). Each of the weapons is activated when the player picks up the chip for that weapon. If the same chip is picked up twice in a row, the player ship's power will increase to the second level. After another pickup, it will increase to the final third level. Options: The player can acquire up to two options in succession. Depending on the current level of the collected chips, the options either fire normal projectiles (level 1) or the same weapon as the player ship (level 2 and 3) when attacking. The options can block enemy projectiles, but not laser weapons and missiles. 1-up: When you pick up the 1-up item, the number of remaining player ships increases by one.