Karloff by Spectrox
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- K A R L O F F -
a gruesome GBA Demo
by Spectrox at MountainBytes 2026
Code, Logo, Font ............... Olympian
Graphics ....................... Grimnir
Music ........................... Virgill
ASCII ......................... Dipswitch
This is our small contribution to MountainBytes
2026 and this year's horror theme.
It is my (Olympian's) first attempt at coding
some simple stuff on the Gameboy Advance and I
had lots of fun with it :)
Greets to Heaven / DESiRE for giving me some
pointers!
I also designed the title logo, which was
heavily inspired by the "Splatterhouse 2" box
art.
Many thanks to Grimnir for the fantastic work
on the main graphics! And of course, a big
thank-you to Virgill for delivering another
banger soundtrack!
As always, you can find all the source code and
assets on GitHub: https://github.com/olymp14n
...
# spectrox-karloff-real.gba
Intended for real hardware. Best played on a
GBA SP with a backlit AGS-101 screen or on a
Nintendo DS / DS Lite.
Original GBA and AGS-001 GBA SP models are not
recommended due to low screen brightness.
# spectrox-karloff-emu.gba
Intended for emulation. I found that the
timings were a bit off when playing the demo on
emulators, probably because of the audio buffer
settings. So I tried to compensate for that in
this version. It is only a best guess. In
mGBA an audio buffer of 1024 seems to work
fine. In VisualBoyAdvance-M I got the best
results by setting the number of sound buffers
to 2.
Tested on Windows with mGBA, VisualBoyAdvance-M
NanoBoyAdvance and no$gba.
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