Yeah, that's a good idea about making the 180 turn to be optional I just had the impression that it has been excluded.

...I must admit I'm not so sure if the chain should be introduced into the game as a tool because it may disturb the main characters profile. Maybe we should consider making it to be a spell.

It has been agreed, it's not set in stone though, for potions(spells) to be distributed by the mouse only once per level. So in any given moment sister will be able to use only one spell per level (one in a sense that there is only one ability available per level not in a sense that she can use the spell only once, but that can also be the case for some spells). This decision was made in order to make key usage/controls more simple & to give clue to the player how specific puzzle can be solved (if given spell is super-jump player wont try to finish the level using super-strength )

But most important thing is that if chain is a tool, it's not her temporary magic ability anymore but it becomes her skill. If BJ drinks super-jump potion she is still just a teen girl that can jump higher, if BJ equips chain tool & know how to use it she is really Bloodrayne