(NOTE: Bonus Jam Game was hacked up in about an hour, and has next to no gameplay. It has nothing to do with this game.)

You will probably want an emulator to play this unless you actually know how to solder properly. YOU WILL WANT SOUND.

Please run at 50Hz (PAL) if you can.

Emulators that might work (note: SEAL is an audio library which sucks horribly under Linux):
MEKA: http://www.smspower.org/meka/ (USES SEAL but the emul itself is very good, press Esc for full-screen & stuff)
SMSPlus/SDL: http://www.zophar.net/sms-gg/sms-plussms-plus-sdl.html (probably a good choice, sadly it only runs at 60Hz)
Kega Fusion: http://www.eidolons-inn.net/tiki-index.php?page=Kega (closed-source, with enough prayer it might just work on Linux)
FreezeSMS: http://freezesms.emuunlim.com/download.html (closed-source, windoze-only, doesn't seem to work with Wine Ubuntu 10.04 Edition)

And now, ripped straight from the readme.txt:

Cardiac Arrest: Screw-it-I'm-uploading edition
by Ben "GreaseMonkey" Russell, 2010
for Ludumdare #19

ok this game is called "Cardiac Arrest" because it's just about to give me cardiac arrest
i've mangaged to release it though but in a really crap state with 2 hours to spare
it's playable, though, and i don't think there's any bugs in it
and yes, they are supposed to be able to shoot each other

story:
while you're doing a thing, you discover a nuclear bomb somewhere
your aim is to return it to the address on the bomb
unfortunately people want the bomb so they'll shoot you to get it
more unfortunately the best they can do is shoot the bomb, exploderating it
the rest of the story is up to you to play out

buttons:
up,down,left,right are obvious
1 and 2 do nothing
you can't pause
reset button is ignored, flick the power switch like a real man