"Nice Thomas was a clone idea!"
"not very clear at start that climbing by fat guy is possible"
This is preconception xD
"Hard/impossible to go out of spikes pit"
It wasn't supposed to be that way, but we had some setbacks and ran out of time.
"Even less clear that climber can make ladders through floors!"
The third screenshot here on the page shows exactly the instruction on forming ladders!
"And intro texts are too fast for me to read"
Same as spikes D=