This is a modified version of my Stargate for pico8 to make it identical to its predecessor, Defender.
Controls :
X - Fire laser
O - Hyperspace
O while holding X - Smartbomb
About smartbombing pods : If you smartbomb pods when there are more than 2 pods in the level, the smartbomb will wipe out both the pods and swarmers at once. otherwise swarmers will survive !

Since there were tons of tokens left after removing stargate contents, I added scoreboard and various gameplay options :
Start lives - number of lives at start. number of smartbombs at start is lives+1.
Bonus at - the required score for extra live and smartbomb. 0 means no bonus at all.
Humanoids per planet - number of humanoids in each planet. 1 to 10.
Waves per planet - Number of waves until moving to the new planet. 0 means never moving to new planet.
Start difficulty - Initial difficulty of the game.
Max difficulty - hardest difficulty of the game.
Risky hyperspace - when it's set to yes, the player has a potential of causing self-destruct after using hyperspace. No means you will always be safe after using it.
Fire on release - when it's set to yes, you can fire laser by both pressing and releasing the button like atari-8bit port of defender, which allows to rapidly fire laser without too much effort of mashing the button.