Got to level 41 easily as rogue, but, the only door left is behind a spike trap (the stabby type) and of course I can't walk through it.
Also I'm at 25 attack and I think it's maxed, since I can't pick up swords anymore either.
I also couldn't pick up the green ??potion?? that spawned in level 30-something, but I have no idea what it does and why I couldn't pick it up.
Still fun. :)