Tip: When determining a time limit, remember that players won't be as familiar with the level as you are. If you normally complete the level with around 100s left on the timer, others might run out of time on their first try.
It's basic, and it might be hard to find a use for in most traditional hacks unless ExAnimation were also implemented into this. Maybe you can release a version that utilizes the "manual"-mode ExAnimation flag(s) in the future?
It works and it has a use though, which are the most important parts.