Fireboy and Watergirl - 2D Flash Game the multibox brain will appreciate.

In real life, you are a 10lb brain that pilots a multisensory articulated vehicle that weighs 7-100x as much as you.
In games, we are one person who controls 0-222(I don't know the actual record, haven't checked in with Prepared/SamDeathWalker in a while) individual units.
But here's this game which just made my brain SO HAPPY because it feels like 2boxing. One character is controlled with WASD, the other with ↑←↓→.
Have a nice patch day adventure!

http://jayisgames.com/games/fireboy-and-watergirl/