The Adventures of The Lost Spacesheep, Destroyer of Universes

SHOOT AT THINGS
ENTER THE VORTEX
DESTROY UNIVERSES
FIND HOME

Adventures of The Lost Spacesheep, Destroyer of Universes is a short shmup where you'll follow the long road through the multiverse that a Spacesheep has to travel to finally get home.

On a serious note: The game has a lot of rapidly flashing high contrast colours. If you have any health problem that could be affected by stuff like that, I really suggest you to avoid playing this game.