Gridblaster
So instead of finishing off the work I was supposed to do this afternoon I spent an hour attempt to make any kind of headway in Gridblaster. For some reason Gridblaster breaks the videogame-processing parts of my tiny brain. It seems no more complicated than your average retro-shooter, but for some reason there's just too much going on for me to cope with.
It looks innocuous enough - it's the Bomberman map with added shooty stuff - but it's hurting me.
And I can't deal with it. I have to stop. Perhaps it'll be okay for you.
Found via the splendid Retro-Remakes.