How does Blitz handle mesh/collisions?

Nice planks :) Basicly I have to say all level geometry (walls, floor, planks etc.) should be polygon where the player should use sphere.
Only make sure there are no holes in the ground, because even when they are tiny, you may fall trough. So make sure vertices are shared, or planes are intersecting:

      Player may fall trough this ground when walking from right to left (even when it's radius is much higher than this gap):

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      Player won't fall trough this one since the planes are intersecting:

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