#4 Sand problems

[Simon White]

Using version 0.9 on Linux it's possible to get stuck
in the sand.

On the jump level the slanted sand box that should
cause you to roll off instad makes you to get stuck at
the edge. The jump/movement keys do not let you escape
(jump dosen't appear to work when your stuck like this).

At the end of the same level it also happens with a bad
jump into the sand that should have resulted in you
rolling back into the acid.