Invader Overload is a PICO-8 game by morningtoast. Basically the game is Space Invaders with a few extras. Collect 3 of the same the color power-ups to gain a powerful new weapon. Shoot the UFO and collect the yellow drop to kick off fever mode! Then collect enough fever mode coins to switch stages and backgrounds. This game is endless. Survive as long as you can while chasing a high score.

Changes:

v1.6 – Holiday edition! Added shield powerup. Better manual fire. Boot up credits.

http://www.lexaloffle.com/bbs/?tid=4004