How to play

You control your ship with five keys; thrust (move forward), turn left, turn right, fire main gun and fire special gun. Both main and special guns can be upgraded by picking up power-ups that appear around the level from time to time.

When you pick up a main gun power-up, your gun is replaced instantiously. Your main gun also has unlimited ammo. If you pick up worse gun than you already had, tough luck.

Your ship also has special weapon with 2 to 16 slots; only one slot can be active at a time. To activate another slot, you must either visit a base and pick the slot, or pick up a "next slot"-power-up. The special weapons have limited ammo.

When you visit a base, your ship is also automatically repaired; this takes time, and you are literally a sitting duck when you are being repaired. You also must return to a base when the last enemy goes down. The bases may also be destroyed along with all the other terrain, but they regenerate in time.

Customization

Manual installed with the game contains instructions how to create your own levels and how to change the game music.