HERE'S A QUICK DEMO showing the progress on Udo so far.
Left - left
Right - right
Down - duck
Space - jump
Press down while in the air to perform a downward spin attack to kill the sheep.
Press space while ducking to drop down from one level to the next (where possible).
Don't touch the sheep when not spinning, land on the spikes or fall in the water (well, actually, do because Udo's dying animation is quite cool).
ESCAPE - to open the options and play about with graphics settings or exit.
No sound yet.
Comments welcome as always.