enemy seem to teleport around walls, especially if a
wine-powerup (enemys dont move) was active while a
enemy was spawning near a wall.
reason: enemys check if outside walls after a
"spawn-time". If still outside, enemys will be
"teleported" inside walls. This spawn-time now conflict
with the wine-powerup "wine-time".
solution: be careful around walls
fix: next version (hopefully)