In SASOD, an alien invasion is threatening to ruin the entire planet and you are in charge of stopping it - but can you?

It is displayed in classic arcade-style with descending alien ships only difference is you do have free range over the entire display and are not confined only to the bottom of the screen. There are battle-breaks with campy little messages like "It's an alien invasion!" and "We need to organize a counterattack!"

There are separate control schemes for singleplayer and multiplayer. You can set these from the options menu in the game. You can even use a gamepad if you like!

Singleplayer controls:
P1 Up Arrow key Up
P1 Down Arrow key Down
P1 Left Arrow key Left
P1 Right Arrow key Right
P1 Shoot Left Control

Multiplayer controls:
P1 Up Arrow key Up
P1 Down Arrow key Down
P1 Left Arrow key Left
P1 Right Arrow key Right
P1 Shoot Right Control
P2 Up W
P2 Down S
P2 Left A
P2 Right D
P2 Shoot Left Control

Global, non-configurable keys:
Pause/Exit Esc
Menu selection Up Arrow key Up (or P1/P2 Up)
Menu selection Down Arrow key down (or P1/P2 Down)
Confirm selection Enter (or P1/P2 Shoot)
Toggle Fullscreen Alt + Enter