I hope I have done this correctly! I am trying to respond to multiple people
Hi, the craze lasted for around 3 - 5ish months - until the next craze came along.
The LEGO characters were the initial starting point. Then we bought/read the books and watched the series on loop simultaneously.
For my son - who is learning to read - the 'complexity' came while reading the books. The characters names, the locations in the story etc are quite long (and unfamiliar words) for a child learning to read while following a story line.
The first BIONICLE my son was give was Gali. When my son realised it was a 'girl', he quickly customised it with Clone Trooper (ball and socket) LEGO arms/legs etc and transformed it into a 'boy' BIONICLE, renaming it. He left his other 'boy' Bionicle's in tact though.
RE: their creative play. The kids grasped the overall plot of the brothers, the masks, the 'goodies' and 'baddies' and improvised on this story line.
RE: LEGO play on the whole, my son is very happy to dissemble, customise, pain, modify etc LEGO sets and competent enough to put them back together. His big pieces (mainly Star Wars shuttles, AT-AT, Chima Castle etc), he will play with regularly and leave in tact. But he'll often make slight modifications. He does not believe in kragle!
Apology accepted! Sorry to bombard your forum. I dont claim to be an expert for one minute on G1 or G2. It was moe a 'bluffers top level guide' for parents to get their head around this 'craze' that swept in (and swept out) so fast.
Thanks for explaining how the forum works I've learnt a load!