just finished the demo, nice game.
only the above mentioned bug annoyed me since upon closing the game, you restart from the very beginning (and not the checkpoint, as you do upon death).
0.2.6.
I was in all cases standing against the left wall since the flying worm thing spawns to the right of me, so I always tried and very often failed to whip that thing when it descends.
and in both cases, standing against the left wall, the thing basically hit me fromm the bottom right, giving me some upwards momentum from the hit.
and most likely shoving me into that rectangular wall aray above, since I at least couldnt se my character anymore.
thats at least what msot likely happened, character was jsut gfone, no input showed him anymore, so I guess hes in the wall or somewhere.